JavaScript Kicks - JSK Daily for Mar 11, 2022

Callbacks are functions that are called back later. If you think I didn't explain anything in the previous sentence, I did emphasize one important identity of a callback - a function. The callback function - including its references - is passed as an argument to other functions....

Bit

Performance optimization is an important factor in web development. React uses "memoization" as an optimization technique to speed up the rendering process of the components. It offers React.memo() and useMemo() to implement memoization. This article will compare and contrast ...

Bit

LeetCode #563 (JavaScript) As much as I enjoy using recursion for binary tree traversal, this problem was super confusing for me. Tilt was a new concept and while simple, the wording in Leetcode's description seems a little awkward. I'll try and simplify. Take a binary tree: N...

JavaScript In Plain English

Map is one of the most popular and widely used functions when working with React. It has two prominent use cases. It's quite similar to how the filter() works. The first one is to modify the state of the application and the other to render a list of elements efficiently....

Upmostly

Learn how to enable JSDoc block based type checking in your JavaScript codebase....

stefan judis

Let's say you have a string of characters that you want to parse and assign to variables, ignoring bits of the data that are meaningless to you. Take a date string for example: 09/09/2022 . Maybe you have a function that receives this date as a string and you want to assign th...

JavaScript In Plain English

"Even if you're writing code only for yourself, with no possibility of it being used in any way by anyone else, your future self will thank you if you write clear code." ~ Clean Code in JavaScript (James Padolsey) React has a declarative programming approach....

JavaScript In Plain English

Getting the Lighthouse performance metrics from a Cypress test. You can find the Cypress tests shown in this blog post in the repo bahmutov/cypress-lighthouse-example. Let's see how fast my blog https://glebbahmutov.com/blog/ loads in the browser. I will use Cypress to visit t...

Gleb Bahmutov

An object in JavaScript is an unordered collection of key-value pairs (key: value). Each key is known as a property, and is a string representing a property na......

StackAbuse