Saransh Kataria

Flatten Arrays in Vanilla JavaScript with flat() and flatMap()

Flatten Arrays in Vanilla JavaScript with flat() and flatMap()

  • January 5, 2022

ES2019 introduced two methods on the array prototype that would make life so much simpler for developers. These are flat() and flatmap() which help in flattening arrays. Array.prototype.flat() As the name suggests, the flat() method returns a new array with elements of the subarray flattened into it, that is the...

Using GroupBy on an array of objects in JavaScript

Using GroupBy on an array of objects in JavaScript

  • December 29, 2021

Array grouping is a fairly common operation in any project. Until recently, we had to either write our own implementation or use third-party libraries when wanting to GroupBy on an array of objects in JavaScript. That will soon no longer be needed since a native implementation has been introduced in...

Node.js introduces node: protocol imports

Node.js introduces node: protocol imports

  • December 23, 2021

Node.js recently introduced a node: protocol for built-in modules. Built-in node modules can now be imported by prefixing the node: protocol prefix. So, what previously used to be can now be imported as Benefits It is currently supported:

JSON Modules in JavaScript

JSON Modules in JavaScript

  • December 8, 2021

ES Modules were introduced in ES2015. The import and export keywords by default are only applicable to JavaScript code. But there is a new proposal to allow it to be used for JSON modules in JavaScript. It is convenient to keep some configuration inside a JSON file and import that....

How to check if a string contains emojis in JavaScript?

How to check if a string contains emojis in JavaScript?

  • December 1, 2021

If you have user-generated content in your web application, chances are you have to deal with strings containing emojis. Since emojis are stored as Unicode, chances are that we want to detect these in our code and then render them accordingly. This article discusses how we can check if a...

Writing conditionals in CSS: when/else

Writing conditionals in CSS: when/else

  • November 24, 2021

CSS already has had conditionals in the form of @media queries or @support queries to selectively apply styling to the document. But there is a new proposal called when/else which takes it to a different level. At the time of writing this post, the when proposal for when has been...

Retrieving content value of ::after or ::before in JavaScript

Retrieving content value of ::after or ::before in JavaScript

  • November 21, 2021

Let us suppose we had an HTML element which had an ::after property assigned to it. We are going to be retrieving the content value of ::after or ::before of this element using JavaScript. For the following element: If we needed a way of retrieving content value of ::after in...

How to permanently remove a file from Git history

How to permanently remove a file from Git history

  • November 12, 2021

We all make mistakes sometimes. Pushing files that contain some secrets or sensitive information to a Git repository is fairly common. And even if we revert the commit, it would still be present in the Git history of the project. In such cases, where we want to permanently remove a...