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Introduction to Haskell Map

Whenever we want to apply a function on each element of a given list and produce a new list consisting of the updated elements, then we make use of a function called map() function in Haskell and this map() function takes a list and the function to be applied on each element in the list as an input and returns a new list as the output and this map() function is available in Data. Map module and the internal implementation of map is a balanced binary tree and this is a very efficient representation in Haskell programming language when compared to the other implementations such as Hash table.

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The syntax to define map in Haskell is as follows:

How does Map work in Haskell?

Whenever we want to apply a function on each element of a given list and produce a new list consisting of the updated elements, then we make use of a function called map() function in Haskell.

The map() function takes two parameters namely a list and the function to be applied on each element in the list and returns a new list as the output.

The map() function is available in Data. Map module in Haskell programming language.

The internal implementation of map is a balanced binary tree and this is a very efficient representation in Haskell programming language when compared to the other implementations such as Hash table.

Examples

Lets us discuss some of the examples.

Example #1

Haskell program to demonstrate map function using which we are adding 2 to each element in the given list and display the resulting new list as the output on the screen:

--defining a main function in which we are using the map function on a list to add 2 to each element in the list and display the resulting new list as the output on the screen main  = do let new = map (+2) [10, 20, 30, 40, 50] putStrLn "The elements in the new list after using map function is:n" print $ new

The output of the above program is as shown in the snapshot below:

In the above program, we are defining a main function within which we are using the map function on a given list to add 2 to each element in the list and display the resulting list as the output on the screen.

Example #2 --defining a main function in which we are using the map function on a list to multiply each element in the given list by 2 and display the resulting new list as the output on the screen main  = do let new = map (*2) [10, 20, 30, 40, 50] putStrLn "The elements in the new list after using map function is:n" print $ new

The output of the above program is as shown in the snapshot below:

In the above program, we are defining a main function within which we are using the map function on a given list to multiply each element in the list by 2 and display the resulting list as the output on the screen.

Example #3

Haskell program to demonstrate map function using which we divide each element in the given list by 2 and display the resulting new list as the output on the screen:

--defining a main function in which we are using the map function on a list to divide each element in the given list by 2 and display the resulting new list as the output on the screen main  = do let new = map (/2) [10, 20, 30, 40, 50] putStrLn "The elements in the new list after using map function is:n" print $ new

The output of the above program is as shown in the snapshot below:

In the above program, we are defining a main function within which we are using the map function on a given list to divide each element in the list by 2 and display the resulting list as the output on the screen.

Example #4

Haskell program to demonstrate map function using which we subtract each element in the given list by 2 and display the resulting new list as the output on the screen:

--defining a main function in which we are using the map function on a list to subtract each element in the given list by 2 and display the resulting new list as the output on the screen main  = do let new = map (2-) [10, 20, 30, 40, 50] putStrLn "The elements in the new list after using map function is:n"

The output of the above program is as shown in the snapshot below:

In the above program, we are defining a main function within which we are using the map function on a given list to subtract each element in the list by 2 and display the resulting list as the output on the screen.

Conclusion

In this article, we have learned the concept of a map in Haskell programming language through the definition, syntax, and working with corresponding programming examples and their outputs to demonstrate them.

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How Groupby Work In Scala With Programming Examples

Introduction to Scala groupBy

Scala groupBy is part of the collection data structure. As the name suggests, it is used to group the elements of collections. This groupBy is applicable for both mutable and immutable collections in scala. Immutable objects are those which are, once assigned, cannot change their value itself, and mutable objects are those whose value is changing very frequently. Also, this groupBy converts the List into Map so we can perform some useful operations on it. It will return us a map that will contain the key-value pair.

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Syntax and parameters:

Scala groupBy function takes a predicate as a parameter, and based on this, it groups our elements into a useful key value pair map. That means we can convert our List object to Map using groupBy function.

groupBy[K](f: (A) ⇒ K): immutable.Map[K, Repr]

In the above syntax, we can see that this groupBy function will return a map of the key-value pair. Also, inside the groupBy, we will pass the predicate as the parameter.

We can see one practical syntax for more understanding:

var l1= List("anc", "ahg", "tyh")

In this way we can define our groupBy function and convert the list into a Map of key-value pair. We can use this function with any collection data structure.

How groupBy work in Scala?

Scala groupBy is used to group elements from the collection. It is also used to store the objects and retrieving of the object. groupBy return us Map collection in scala.

We can have a closer look at groupBy syntax and how it is working:

Let’s have a look at its extended superclasses and some known classes in scala.

Extended classes available:

Iterable[(K, V)]

MapOps[K, V, Map, Map[K, V]]

MapFactoryDefaults[K, V, Map, Iterable]

Equals

Superclasses available:

Equals

MapFactoryDefaults[K, V, Map, Iterable]

MapOps

PartialFunction

Iterable

IterableFactoryDefaults

IterableOps

Map

IterableOnceOps

IterableOnce

AnyRef

AnyRef

Some of the known subclasses available:

AbstractMap

SeqMap

SortedMap

Map

TrieMap

HashMap

IntMap

ListMap

LongMap

Map

Map1

Map2

Map3

Map4

WithDefault

SeqMap

TreeMap

TreeSeqMap

VectorMap

AbstarctMap

AnyRefMap

CollisionProofHashMap

HashMap

LinkedHashMap

LongMap

SystemProperties

ListMap

MultiMap

OpenHashMap

Hierarchy available:

Iterable

MapOps

Equals

UnliftOps

IterableOnceExtensionMethods

ImmutableMap

MutableMap

Example:

Code:

object Main extends App{ var list1= List("amit", "sumit", "vinit", "ajit", "kavit", "lalit", "lalit", "vinit", "vinit") println(g) }

In the above example, we first defined a list containing some objects. This list also contains some duplicate objects as well. After that, we are applying the groupBy function to group by the same elements. So in our list vinit and Lalit, it appears to be more than one time, so while creating HashMap, it will group all these similar list elements against the same key in the map.

This is something weird, but it is helpful if we want to apply some logic on the list based on groupBy of elements on some basis.

Examples of Scala groupBy Example #1

In this example, we are just applying groupBy for beginners to understand. We are using groupBy on List here.

Code:

object Main extends App{ var list1= List("amit", "sumit", "vinit", "ajit", "kavit", "lalit", "lalit", "vinit", "vinit") println("list before group by is  ::") println(list1) println("list after group by is  ::") println(group1) }

Output:

Example #2

In this example, we are grouping a list of integers.

Code:

object Main extends App{ var list1= List(100, 400, 200, 500, 100, 1900, 2000, 400, 400, 19000) println("list before group by is  ::") println(list1) println("list after group by is  ::") println(group1) }

Output:

Example #3

In this example, we are grouping elements on the basis of contains method as a predicate.

Code:

object Main extends App{ var list1= List("amit", "sumit", "sumit", "vinit", "ajit", "kavit", "lalit", "lalit", "vinit", "vinit") println("list before group by is  ::") println(list1) var group1 = list1.groupBy(_.contains("sumit")) println("list after group by is  ::") println(group1) }

Example #4

In this method, we are passing charAt as a predicate inside groupBy method.

Code:

object Main extends App{ var list1= List("amit", "sumit", "sumit", "vinit", "ajit", "kavit", "lalit", "lalit", "vinit", "vinit") println("list before group by is  ::") println(list1) var group1 = list1.groupBy(_.charAt(0)) println("list after group by is  ::") println(group1) }

Output:

Example #5

In this example, we are grouped by the list of integers by checking whether the element is divisible by ‘3’ or not.

Code:

object Main extends App{ var list1= List(100, 400, 200, 500, 100, 1900, 2000, 400, 400, 19000) println("list before group by is  ::") println(list1) var group1 = list1.groupBy(_ % 3) println("list after group by is  ::") println(group1) }

Output:

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How Does Assertion Work With Advantages & Examples

Introduction to Java Assertion

In Java, Assertion is a statement that ensures or tests the correctness of the assumptions made in a program. It is done with the help of the assert statement. When the written assumption is executed, it is considered as true. If it is false, an assertion error will be thrown by the Java Virtual Machine.

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The main reasons why Assertions are used are:

To confirm whether an unreachable code is reachable.

To confirm, the default case in the switch is not reached.

After the invocation of a method.

To check the state of an object.

Below is the syntax of the Java Assertion statement.

assert expression; assert expr1 : expr2;

Any of these syntaxes can be used based on the requirement.

How does Assertion work in Java?

As already mentioned, assert can be written in two forms.

The syntax asserts expression; is used in order to test the expressions of Boolean form. If the particular expression is false, the program gets terminated by throwing an AssertionError. Unlike the normal exceptions, these errors are disabled during runtime.

However, the syntax asserts expr1: expr2; it is used in cases where the program has some extra information that helps diagnose certain failures.

Similar to the uncaught exceptions in Java, assertion errors are commonly labeled in stack trace along with the file as well as line number from which the exception is thrown.

Even though these are the main pros of Assertion, there are certain situations where Assertions should not be used. They are:

Error message replacement.

Argument checking in public methods

Command-line arguments.

Note:  Before compiling the code, make sure that assertion is enabled.

Syntax

java –ea programname

Or

java –enable assertions programname Steps to use Eclipse Java Assertion

In Eclipse, it can be done using the below steps.

Step 1: Select Run Configurations.

Similarly, assertions can be disabled using the syntax given below. Java –da programname

Examples to Implement Java Assertion Example #1

Java program to check whether a particular value is higher than 20.

Code:

class AssertionExample{ public static void main( String args[] ){ int val = 14; System.out.println("The given value is: "+ val); } }

Output:

On executing the code, the message “The given value is 14” gets displayed.

It can be clearly seen that assertion is not checked here since the value is greater than 20 is not checked.

In order to enable assertion, -ea has to be set before compiling. For that, perform the steps mentioned in NOTE.

If you again try to run the code, it can be clearly seen that an AssertionError has been thrown since the value is less than 20.

Example #2

Java program to check whether a particular user input value is higher than 20.

Code:

import java.util.Scanner; class AssertionExample{ public static void main( String args[] ){ Scanner sc = new Scanner( chúng tôi ); System.out.print("Enter a number to check assertion "); int val = sc.nextInt(); System.out.println("The given value is: "+ val); } }

Output:

The user will be asked to input a number on executing the code. In the below result, the number 13 is given as input. Since it is less than 20, an AssertionError has been thrown.

At the same time, when a value which is greater than 20 is given, no errors are thrown, and the message gets displayed.

Example #3

Java program to check the number of days in a week.

Code:

class AssertionExample { public static void main(String args[]) { String[] days = {" Monday " , " Holiday " , " Saturday " , " Tuesday " , " Wednesday " , " Sunday " , " Thursday " , " Friday " }; assert days.length==7 : "7 days are present in a week, Your input is wrong"; System.out.println("There are " + days.length + "  days in a week"); } }

Output:

On executing the code, an assertion error is thrown as the number of days in a week is 7, and the string input given contains more than that.

Let us remove Holiday from the input values and see what the output will be.

Yes. The line gets printed as the assertion value satisfies the input value.

Advantages of using Assertion in Java

Efficient detection and correction of bugs.

Boilerplate code will be removed and helps in creating a readable code.

Execution time won’t be affected since it gets removed automatically during runtime.

Quick bug detection and correction.

Code optimization and refactoring is done with high confidence in order to function correctly.

In addition to the above points, below are the important points that have to be known while studying Assertions.

An assertion in Java is introduced in the version JDK 1.4

Assert is the keyword used in order to implement assertion.

Enabling and disabling of assertion can be done at runtime with the help of corresponding syntaxes.

Even though assertion compliments the exception, it does not replace the exception.

It does not replace the unit testing even if it helps in the validation of conditions.

Never use assertion for arguments or parameters validation of a method that is public.

Conclusion

Java Assertion is a statement that checks the trueness of a particular condition. It is commonly used in testing during software development. Moreover, they are used with certain Boolean expressions. In this article, several aspects such as syntax, working, pros, cons, and examples of Assertion is explained in detail.

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How To Compute Duck Number With Examples?

Definition of Duck Number

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Duck numbers might find some applications in Statistics, games, data analysis, and data science areas. We should have a simple and fast method to compute them to make these applications attractive to the users.

Logic behind

Some Samples are given below

87292 is not a duck number since it does not have any zeroes in it

00087 is not a duck number because zeroes are present only in insignificant positions, which do not add any value

089 is not a duck number for the same reason

A mere 0 is not a duck number

9032 is a duck number since it adds value to the number

80 is a duck number for the same reason

-130 is not a duck number since the number is negative

It should not contain any decimal value

How to compute Duck Number?

The following steps are used to compute.

Accept the number. It should be a positive integer number

Check for zeroes in the high order or leading positions that are insignificant and remove them.

Hence the first digit in the number should not be zero

Scan thru the number and find out whether any zeroes are present in the number.

If so declare the number as a duck number otherwise, it is not a duck number

Example in C++ Language

A sample program was developed in C++ language to determine whether a given number is a Duck number or not.

Code:

using namespace std; int check_duck(string num) { int i = 0, n = num.length(); int x=0; while (i < n) { if (num[i] != '0') x = 1; if (num[i] == '0' and x ==1) return 1; i++; } } int main(void) { string num = ""; cout << "Enter the number Please:"; int result2; result2 = check_duck(num); if (result2 == 1) cout << " " << num <<" is a duck number" ; else cout << " "<< num << " is not a duck number"; }

Result for the various values

Program logic

The number is accepted as a string

Number String is scanned from left to right character by character

The first occurrence of a non-zero number is established.

Post this non-zero occurrence if any zero is encountered the number is declared as a duck number otherwise not.

Example in Python

A sample program is developed in Python language using the same logic and the program code is:

# Python program to determine whether a given number is a duck number or not s=0 # Defining and initialising the program variables k=0 x = input("Your Number Please : ") # Prompting for number and taking it in x for i in x: # Scanning character by character (left to right) if i != "0": # Hit upon first non zero number from left k = 1 # Capturing the occurrence of first non-zero if i == "0" and k == 1: # looking out from next zero character if it is s = 1 # followed by a non-zero # sensing that event and set a switch as result if s==1: # interpreting the result using the switch #and display whether the number is duck or not print (f" The given number {x} is a duck number") if s==0: print (f" The given number {x} is not a duck number")

The result for various inputs are given

Logic used

Number is accepted as a string

Numbers are scanned character by character from left to right

Zeroes in the high order or leading positions are weeded out and the first non-zero character is sensed.

The Post-non-zero presence of zero characters is sensed and the result is inferred.

Conclusion

We have understood the meaning and importance of duck numbers and also the ways to compute them through python and C++ programs. Using this logic one can easily find out the duck numbers in a given range of numbers and incorporate them in their game or data science applications.

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How To Work From Home With Slow Internet?

We all want our internet to be super fast while working from home, but we sometimes face several difficulties.

For instance, we get stuck in the middle of a task (uploading, editing, etc.), which forces us to pile up our work.

The only cause for such obstacles is slow internet besides broken plugs or devices (computer, PC, etc.)

Internet connects the world; however, it can also hinder the connection due to poor network or Mbps.

So, how much speed should a person consider while working or installing the internet at the home office?

Also, if you are struggling with slow internet, I recommend setting bandwidth boundaries and testing speed frequently.

Not satisfied with the above information, right? Don’t stop smiling because I have developed detailed content on it.

Also, you will know the reason behind slow internet, the solution to slow internet, and many more in the article below.

Reasons Why your Internet Speed is Slow

There are several reasons why your Internet connection might be slow.

It might be an issue with your modem or router, wifi signal, cable line signal strength, network devices consuming bandwidth, or a slow DNS server.

Besides, other technical and non-technical reasons cause your internet to be steady like a tortoise. They are listed below:

I think bandwidth throttling could be the main reason for slow internet.

Next, your router might be outdated.

Your internet plan might be slow.

The distance between the router and your working space contributes to slow internet.

Also, the internet speed depends on the number of users. For example, if your family members stream series and play games during office hours, you will experience slow internet (or system crash in extreme cases).

Sometimes, your internet might be slow when many other devices are connected to the network.

The malware or the viruses might have affected your computer, slowing your internet.

The programs running in the background may cause your internet to slow down.

Lastly, you might face a severe slowdown if your recent internet speed no longer supports your job.

For Your Information: Bandwidth throttling is the condition where the internet service provider decreases the internet speed intentionally.

How to Deal with Slow Internet or Make your Internet Fast?

People have become heavily dependent upon the internet for work, entertainment, and even shopping. So, yes, except for work, other doesn’t matter.

For instance, we can wait to watch movies, listen to songs, and shop online. But, our work and the employer cannot wait for us no matter how slow our internet is.

Therefore, I have included the measures to overcome slow internet below.

1. Reboot your Internet Connection

Initially, you must be aware of rebooting your router by yourself. Next, check your wifi speed; if it is still not operating, move the antennas.

Again, try to move the router near your working space if your internet gets slow. Then, repeat the first step, i.e., restarting the router.

Likewise, your modem might also be the reason behind your slow internet. So, reset it as well.

Steps to Reboot the Router

Remove the router and modem from the network. Unplug any other managed network devices, such as network switches.

Allow at least 30 seconds to pass. This allows the equipment to cool down while signaling that the router and modem are unavailable to your ISP, PCs, and other devices.

Plug-in the modem. Press the Power button if it does not turn on after a few seconds.

Allow at least 60 seconds to pass. The modem authenticates with your ISP and is now issued a public IP address.

Connect the router. You may need to push the Power button on some routers.

Wait at least 2 minutes before proceeding. It also allows the router to start up and allows laptops, cellphones, and other networked devices time to receive new private IP addresses via its DHCP service.

Also watch,

2. Install The Reliable VPN(Virtual Private Network)

Many people do not feel it necessary to install a VPN on their devices, but the truth is, VPN has a significant role in reducing network traffic.

Like, VPN establishes a secure network whenever you surf a public network.

The VPN does not let third parties (hackers) hack your data in a sense.

You can consider paying for a VPN or opting for a free service.

Paid solutions are typically speedier, but because you are utilizing a relay for traffic, they can still slow down your internet — and if the VPN service is utilized during busy periods, there may be a delay.

3. Make a Habit of checking your Internet Speed

There is no guarantee of receiving accurate Mbps from your internet service provider.

For example, you have paid for 25Mbps of wifi, but you face several net problems whenever you try to watch a movie or download it; it might be because of low Mbps.

An internet speed test will help you find out what’s going on with all of your home’s devices.

Your internet service provider (ISP) may give speed test choices, and you may also utilize diagnostic platforms such as Ookla, Google, and others.

So, use the available sites to check your internet speed frequently.

Only then, call your particular internet service provider and take a profound lesson about your slow internet.

4. Adjust your Router Position

Most of us keep our router in tight space. But, this technique does not help boost our internet speed.

Moving the router can significantly impact the speeds you obtain and the range of your wireless broadcasts.

The ideal location for your router may vary depending on your home, but avoid hiding it in a corner, beneath a cabinet, or inside a drawer—the more central and visible it is, the better.

Therefore, try to place the router in an open place or at the center of your room, where you can connect your device easily.

Also, you can hang your router on the wall. This will help your internet to reach many places of your home.

5. Replace your Wifi with the Ethernet Cable

Using an ethernet cable is best suitable for people working on computers. This is because the ethernet cable reduces the lag time between your computer and the router.

Unlike wifi, the ethernet cable lets your computer connect directly to the router.

It’s more reliable and speedier, unaffected by other gadgets.

As a result, your computer can receive the signal at a higher speed from your router.

6. Check the Condition of your Hardware

Even people become old and leave the world after reaching a certain age level.

In the same way, machinery items, including computers, routers, and others, also deteriorate after two or more years.

Older devices can sometimes not support faster networks, resulting in lag or no access.

So, examine your computer and its performance to fix your slow internet.

Only the higher speed of the internet is not a factor to consider; you must also have up-to-date equipment.

Therefore, I suggest you upgrade your old technology with the latest one.

7. Check DNS Server

In a simple term, DNS means the Domain Name System. It is defined as the server matching the website hostnames with their corresponding IP (Internet Protocol).

And when we use the DNS server, which is provided by our internet service. But, sometimes, those servers might overload our internet slow.

Your connection will be interrupted if your ISP’s DNS servers are slow or improperly set for caching.

Switching to DNS servers that are optimized for efficiency might help you surf faster at home or work.

To overcome it, we can switch on to another DNS server.

You may use Google DNS or Cloudflare, both quicker and free alternatives (to name two of our favorites).

8. Limit Bandwidth Sucking Apps

We use many programs in a single time while working. In the process, such apps might be consuming higher bandwidth than expected.

Check to verify if any other apps are consuming the connection if your hardware appears to be in good working order.

For example, regular online browsing will be slower if you download things with BitTorrent.

File-syncing services such as Google Drive, Dropbox, and OneDrive may be uploading files in the background, using bandwidth, and slowing down your internet connection.

So, try to minimize heavy and more programs while working.

9. Scan the Viruses and Malware

We browse many apps and websites in a single day. However, our computer might be infected due to viruses in that process.

The viruses on our computing system also impact our internet system.

In a sense, if a computer’s performance decreases due to the malware, then we also cannot surf the internet at a higher speed.

Therefore, scan the viruses on your computer more habitually.

Set your antivirus software to scan for viruses and malware once installed regularly.

If the program detects existing viruses or malware (which may cause your poor internet connections), get it removed by a computer professional.

10. Get a Wifi Extender

Signal deterioration is common when multiple wifi-compatible devices are connected to a single router. A wireless extender can help in this situation.

It can assist in strengthening wireless signals by receiving signals from routers and dispersing them appropriately among various devices.

Extenders rebroadcast your existing wifi signals with a new, stronger signal.

The wifi range extender helps your internet reach almost every place of your home.

These gadgets connect to your router’s wireless internet and then extend it by plugging into an empty electrical outlet.

They’re (usually) straightforward to set up and use, and they may eliminate wifi dead zones in your home.

The extended or repeated wireless signals will be weaker than the ones coming directly from your network; thus, location is crucial once again.

The following method is to set up a wifi range extender. These objects are small in size.

11. Purchase a New Router with the Greater Strength

If your router isn’t up to speed, even the fastest internet connection in the world won’t help your wireless devices.

If you find your internet speed lagging even after you have repeatedly restarted your router, it is best to purchase a new one.

Moreover, changing the router after a year will help you work with excellent internet speed.

Get a new wifi router that supports 802.11ac (also known as wifi 5) or at the very least 802.11n (also known as wifi 4) to solve this issue.

If you want a speedy wifi router, you may choose one that meets the newest 802.11ax specifications (known as wifi 6).

Wifi 6 is significantly more suited to dealing with traffic from large crowds and has a potential speed of up to 9.6Gbps (about three times the current theoretical limit of wifi 5).

12. Upgrade your Internet Plan

Upgrade your internet plan to include better speeds to meet your lifestyle, depending on your internet provider.

When determining which plan is suitable for you, remember how many people reside in your house, how many connected devices you generally have, and how often you use the internet.

Finding the best Internet service for your company entails more than just looking for the quickest speeds – or the cheapest pricing.

If your internet provider imposes data limits on your service, you should consider upgrading to an unlimited data plan.

13. Choose Another Internet Service Provider

If your internet is still not fast, even after adopting every possible procedure, the last option is to fix your internet.

Do proper research on every available internet service provider in your country to prevent yourself from being scammed.

Have proper knowledge of your required Mbps as well while installing new wifi.

Most places only have a few Internet Service Providers (ISPs), so it should be a straightforward check to see if the other provider that covers your area offers cheaper costs for higher speeds.

Techniques to Work from Home with Slow Internet

Nowadays, the home is the next office to carry out almost every job.

But, in the meantime, employees have to look out the expenses for their wifi as well.

But, again, not every employee can spend their income on the internet with the higher Mbps. So, many of them have to work on slow internet.

About this, I have explained some techniques to work from home with slow internet without any interruption below;

1. Schedule your Internet Usage for Heavy Work

Only a few people live alone, where they can surf the internet as much as they want with more incredible speed.

But, people living with their family and children might experience slow internet.

And to save own self from the specified problem, you can set a routine to use the internet for your work.

For instance, schedule the internet time for your children during the day; so that you can work other times with great speed.

During working hours, it’s critical to know what else is using your home wifi network.

You may also change the automatic update installation time to fit the hours you choose manually.

2. Consider Working Close to your Router

The quick hack to work from home with a slow internet is to sit closer to the router.

Unfortunately, the distance between the router and our workplace significantly impacts the internet’s speed.

Hence, if you do your job sitting close to the router, you don’t have to struggle with the slow internet.

3. Limit Video Chats While Working

Nowadays, we prefer to do video chats over texting. However, while doing so, our internet speed may decrease.

So, try to reduce video calls during your working hour.

Time-shift your call five to ten minutes ahead or behind to minimize connection problems and put less burden on the calling and videoconferencing services you’re using.

Even a ten-minute delay in a call can improve quality and reduce the chance of a disconnect.

If feasible, schedule introductory video calls during off-peak hours (especially if your business already works between time zones).

In many circumstances, it will be faster before 8 a.m. and after 5 p.m.

4. If Possible, Work Offline

Well, it might sound unconvincing but try doing your task offline. Yes, I know that you need to browse several websites to do a job.

And while doing so, those sites can eat more bandwidth than required.

You should seek offline productivity choices if you have a slow internet connection.

This implies that instead of working directly in Google Docs and Sheets, you might work on Microsoft Word and Excel projects.

Offline mode in Google Docs, Sheets, Slides and Drive is another alternative.

This allows you to open and modify certain documents even if your network is down or inconsistent.

You can download the needed files or information beforehand to eliminate such problems.

Then, you can continue your work by turning off your wifi; this idea might not be helpful for people like programer and other computer geeks.

5. Disconnect Wifi in Unused Devices

It might not be easy to keep track of dozens of devices all trying to connect to the same wifi simultaneously.

As additional devices are added to your network, you risk draining your allotted bandwidth and overloading your internet equipment.

Latency difficulties and a bad user experience occur as a result of this.

There comes a time where only a few people use the internet to do work or spend their leisure time.

In such a case, encourage those people to disconnect the wifi on their devices.

Also, you can use this technique whenever there is internet traffic (it makes your internet slow).

6. Optimize your Web for Slow Internet

Troubleshooting slow internet might take a long time, and you still need to browse in the meantime.

Consider optimizing your web for slow internet.

You can disable Web images, the Adobe Flash plug-in Applets, and JavaScript in your browser settings because they are frequently the largest files on a web page.

We recommend setting up a secondary browser on your laptop for precisely such an occasion – it may make all the difference while working on a poor connection.

The Google Data Saver Extension uses its servers to compress browsing data before it reaches you.

7. Use Mobile Data

Most individuals have a phone plan that includes a reasonably fast and steady internet connection, and most phone plans also provide the ability to use your phone as a hotspot.

Though using your phone as a hotspot might result in rather slower speeds and a lower data cap, it could be worth it to upgrade to a higher unlimited plan that includes a full-speed hotspot.

Or even a separate LTE hotspot—so you can connect your devices without losing your phone’s connection.

It is better to go with an unlimited plan in my experience, and the following two are what I would recommend for the United Kingdom and the United States.

Here are some mobile data plans that you can choose from;

Best Mobile Data PlanFeaturesPrice

$80 per month

2. Unlimited Hotspot at 5 Mbps$40 per month

3. Hotspot 5GB at 5G$30 per month

2. Hotspot 30 GB at 5G$85 per month

Read more: How many GB of data do you need to work from home?

8. Restart your Computer

Another hack to make your internet faster is by restarting your computer. Yes, you heard it right!

Our computer’s processing system often becomes slow due to regular use. And, directly, this causes our internet to be slower than usual.

For that reason, I recommend you reboot your computer to have access to the higher speed of the internet.

Type of  Internet Speed you Need to Consider when WFH

The internet speed is called slow when it falls into the range of Kbps. Likewise, the internet speed with the range of Mbps is fast.

Respectively, the internet that ranges to Gbps is considered super-fast.

Similarly, it would be best to consider 25 Mbps or above the internet speed.

And the speed between 50 Mbps to 100 Mbps is the best for downloading. Likewise, you need 10 Mbps of internet speed to upload files and videos.

With this range, you can do your work with no disturbances.

Also, your relatives and family members can enjoy their leisure time by streaming videos and playing games simultaneously.

If you do not know the required Mbps for performing tasks, you will never know the exact reason behind your late work and slow internet.

Therefore, to make you alert on related topics, I have listed the needed internet speed in the following points;

You need at least 10 Mbps of internet speed to download and upload large files.

Similarly, about 5 Mbps of internet bandwidth is needed for each individual for web browsing.

You need at least 1 Mbps of internet speed to use email and chat services.

Likewise, about 8 Mbps of download bandwidth is needed per individual who uses Zoom and Skype.

150-200 Mbps internet speed is recommended for heavy works like 4k video streaming, sharing large files, online multiplayer games, and so on.

Also, the upload and download speed for Zoom call, Hangout, and Skype are given in the table below;

Find the needed Mbps for downloading and uploading while using Zoom, Google Hangouts, Slack, and Skype.

Name Of AppsUploading SpeedDownloading Speed

Zoom600 Kbps-800 Kbps600 Kbps- 1 Mbps

Google Hangouts 3.2 Mbps (Minimum)1.8 Mbps (Minimum)

Skype128 Kbps (Minimum)128 Kbps (Minimum)

Slack600 Kbps (Minimum)600 Kbps (Minimum)

How to Video Call on Zoom with Slow Internet?

Zoom has been the primary medium for many organizations to communicate with their employees.

But, due to network traffic and other reasons, both the employers and employees cannot properly talk to each other.

Therefore, I have included the ways to video call on Zoom with slow internet below;

First, do not use a webcam when not needed.

In the same way, unmute your mic only when you want to or are asked to talk.

Then, disable HD video.

During your video call, turn off wifi on other devices as well.

Importantly, sit closer to where your router is.

 To Wrap It Up!

As everything depends on the internet, people working from home face certain obstacles due to the slow internet.

But, we can also continue giving our best performance for the company we work for with slow internet from home, we need to alert our router and its antennas.

Plus, we must check wifi internet speed daily to know the actual bandwidth of our wifi.

Moreover, I recommend everyone like me (work out for the company from home with slow internet) place the router at the center.

In doing so, you can easily keep your desktop and laptops connected to the internet.

Also, if you can, I suggest you distribute your Wifi-network to a limited person to minimize your internet traffic.

Lastly, I would like to suggest you install the internet at your home with a bandwidth of at least 25 Mbps.

Also check our article on, How to Type Without Looking at the Keyboard?

How To Work With Document Documentelement In Javascript

In this tutorial, we will learn to work with document.documentElement property in JavaScript.

JavaScript DOM is a JavaScript script that can dynamically read or change the webpage’s content. There are numerous properties available in the JavaScript DOM. We can access, change and style every element on the webpage. The document is the property of dom that is the root of the HTML webpage. It again consists of its child properties.

The documentElement is the child property of the document property in dom. It is used to get the root element of the document. It returns an object consisting of the root element of a document. We can access the root element and collect the data or style it. Any change on the root element will be applied to the overall page.

So, Let us look at how to work with document.documentElement in JavaScript.

Working with document.documentElement in JavaScript

The document.documentElement is a property of JavaScript DOM. The documentElement property of the dom is useful for finding the document’s root element. This property returns the object of the root element of the document. This is the read-only property, meaning you can only use it to display output. You cannot change any content by using this property.

Some properties can be applied to this property. The nodeName property can be used as a child property that returns the root element’s name. In HTML, it displays HTML as a output.

The nodeType property returns the integer value that has specific meanings. If it outputs one, the document root node is the element node.

All the users can use the below syntax to use the document.documentElement method in JavaScript:

Syntax document.documentElement; document.documentElement.nodeName; document.documentElement.nodeType;

Follow the above syntax to work with document.documentElement in JavaScript.

Example 1

p

{

color

:

red

;

background

color

:

greenyellow

;

width

:

fit

content

;

margin

:

5

px

;

}

function

func

(

)

{

var

element

=

document

.

createElement

(

‘p’

)

;

var

data

=

document

.

documentElement

.

innerHTML

;

element

.

innerHTML

=

data

;

document

.

getElementById

(

“div”

)

.

appendChild

(

element

)

;

}

In the above example, users can see that we accessed the total content of the document using a document.documentElement method and displayed again using the inner HTML property.

Example 2

In the example, we have used the nodeType and nodeName properties of the documentElement object. Using the nodeName, we got the name of the root document element as HTML. Using the nodeType property, we have got the ‘1’ as an output that denotes the node is an element node.

p

{

color

:

red

;

background

color

:

whitesmoke

;

width

:

fit

content

;

}

function

func

(

)

{

var

element

=

document

.

createElement

(

‘p’

)

;

element

.

innerHTML

=

“Name of the node: “

+

document

.

documentElement

.

nodeName

;

var

element1

=

document

.

createElement

(

‘p’

)

;

element1

.

innerHTML

=

“Type of the node: “

+

document

.

documentElement

.

nodeType

;

document

.

getElementById

(

“div”

)

.

appendChild

(

element

)

;

document

.

getElementById

(

“div”

)

.

appendChild

(

element1

)

;

}

In the above example, users can see that we have gotten the name and the type of the root element of our document by using the Document.documentElement property of JavaScript dom.

In this tutorial, we have learned to work with document.documentElement in JavaScript.

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