How to declare a global variable in React?
If you need to declare a global variable in React, then you can do the following:
Create a file called config.js
module.exports = global.config = { …Javascript
94 articles about javascript development, tools, and best practices
How to Find the Missing Term in an Arithmetic Progression in Javascript
The challenge
An Arithmetic Progression is defined as one in which there is a constant difference between the consecutive terms of a given series of …
Read Article →How to Count Characters in a Javascript String
The challenge
The main idea is to count all the occurring characters in a string. If you have a string like aba, then the result should be {'a': 2, …
How to Increment/Decrement a value in React/NextJS
Use the following code block to get started:
function GetCount() {
const [count, setCount] = useState(1);
const incrementCounter = () => { …Fixing: ImmutableService requires getRowNodeId() callback to be implemented, your row data need IDs
If you have gotten this error before, then you have been trying to implement a rowData mapping onto Ag-Grid.. and failed!
ImmutableService requires …
Automatically Resize All Columns to Fit in Ag-Grid
If you have an Ag-Grid, and want to automatically resize all the columns to fit the width of the viewport, you can use this hack.
The implementation …
Read Article →How to Get All Rows in Ag-Grid
The easiest way to get the content of all rows’ data, back into a Javascript/Typescript array, is as follows.
Simply create a blank array, then …
Read Article →How to Download a CSV file using Javascript
Ever wanted to generate a CSV (comma separated values) file directly from the browser, using Javascript? Instead of going to the server..
Look no …
Read Article →How to Format Numbers by Prepending 0 to single-digit numbers in Javascript
If you have a single-digit number, and you need to format it to always have at-least two digits, then you can use the below function to solve your …
Read Article →Validate Email Address in Javascript
Below is a nice little Javascript RegularExpression to validate email addresses.
/^\w.+@[a-zA-Z_.]+?\.[a-zA-Z.]{2,3}$/
..and to use it..
if …Remove hash from window.location in Javascript
E.g. URL:<br>http://example.com/?option=1&task=2&listing_id=36&layout=4&table=5#some_hash_value_here
So how would you get the …
Read Article →How to use Google Analytics in AngularJS
It seems to be quite a popular question with not as many answers to hold the weight.
Google Analytics has always been more of a pageviews type …
Read Article →Comparing Java and Javascript
Perhaps the first thing that most people ask when they hear the names of these two programming languages are. “Why do they have the same …
Read Article →Convert URL String into a Javascript Object
Sometimes you find yourself with a String, something like and you want to repeatably access elements of it correctly.
Let’s say that you want …
Read Article →How to fix a Javascript Uncaught ReferenceError
Sometimes you may get an error that looks something like this:
Uncaught ReferenceError: <some_variable_or_function> is not defined
At first this …
Read Article →uncaught typeerror: $ is not a function
The dollar-sign ($) in Javascript has for many years now been associated with jQuery.
When you see this error:
“uncaught typeerror: $ is not a …
Read Article →Another WTF Javascript Moment
Javascript is a powerful language, but sometimes it doesn’t always do what you expect it to.
Take the following expression for example. …
Read Article →How to Format a Number as a Currency in Javascript
There are quite a few ways to format a number as a currency value in Javascript. This is a common task when building web applications, similar to …
Read Article →How to Host an AngularJS site on AWS S3
AngularJS is a Javascript Framework that allows you to create dynamic front-end web applications easily.
I have traditionally packaged these …
Read Article →Generate a random number between two numbers in JavaScript
If you need to generate a random number between two numbers in JavaScript, then you are in the right place! Here you will learn javascript random …
Read Article →How to tell if a String contains a Substring in Javascript
Javascript comes with some pretty good support for determining if a string contains a substring.
There is the newer includes function which was …
How to write Anonymous Functions in Javascript
There is a lot of power in Javascript syntax. One of those powerful things is that of Javascript Anonymous Functions.
But what is an Anonymous …
Read Article →What is Fizz Buzz?
Fizz buzz is a common programming interview question.
The problem statement usually reads something like this:
Read Article →Write a short program that …
How to safely parse JSON in Javascript
JSON stands for Javascript Object Notation and has become wildly popular to transport and store data between application, databases and more.
However, …
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