Remember the earlier versions of React that used to batch multiple state updates inside event handlers such as click or change to avoid multiple re-renders? React 18 has added automatic batching for all use cases to improve that performance optimization even further. With React 18, state updates in event handlers,...
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...
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 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:
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....
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...
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...
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...
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