There are two ways to remove a property from a JavaScript object: one is the mutable way of doing it by using the delete operator. And the second one is the immutable way of doing it by using object restructuring. Let us go through each of these: 1. The delete...
We are all used to using the script tag to load external JavaScript files in our HTML. Traditionally, the only workaround for having the scripts load after the HTML has been loaded was to move the script tags towards the end of the body. But JavaScript has come a long...
When it comes to performance of applications, measuring performance becomes important. For anything to be optimized, it must be measured first, optimized, and measured again to capture gains. Measuring JavaScript execution time thus becomes one of these steps. Modern browsers and the Node.js platform provide various API’s to measure code...
Writing performant code is not enough as a developer. We need to ensure that it is readable as well. And it is rare that an API change in a language introduces readability. Numeric Separators are one such rare change. Why numeric Separators? Reading this takes a few seconds: Counting the...
JavaScript promises do not have any time associated with them. We can use a .then() function and wait until the promise is resolved or rejected. We can even await it, and either of those works if the async task finishes in a reasonable amount of time. But in the case...
Having consistency and enforcing coding standards becomes very important as an application scales. It becomes important to automate the process to ensure quality standards and make the application maintainable. ESLint and Prettier can be used to define these standards, but we also need a tool to enforce them. Husky provides...
Writing conditional expressions is pretty easy to do. But there is room for improvement in the way we have been doing it. And with the flexibility that JavaScript provides, we can replace conditionals with clean code by using some good practices. And it can lead to more maintainable code. Let...
Every now and then, you come across a JavaScript feature that vastly changes the way you write it. Destructuring, arrow functions, modules have been some of those features for me. Optional chaining is going to be the next one on that list for me. Optional Chaining is in stage 4...
Think that the knowledge shared is helpful? You might want to give our mailing list a try. We'll send you 2-4 emails a month, right when new posts come out.
