Sorting JavaScript objects by key involves arranging the property keys of an object in a specific order. You would usually do this to improve readability or to prepare the object for operations that require a particular key order, like comparison or output formatting. Understanding the Basics JavaScript objects are collections of properties, where each property… Continue reading How to Sort JavaScript Objects by Key | Basedash
Category: JavaScript
Replace + with Space in JavaScript
This guide walks you through how to replace the + sign with a space in a string, a common requirement when dealing with URL query strings. What is String Replacement? You would use the String.prototype.replace() to search a string for a specified value, or a regular expression, and return a new string with the specified values replaced. const queryString… Continue reading Replace + with Space in JavaScript
What is evented I/O for V8 JavaScript?
Evented I/O for V8 JavaScript is the core design principle behind Node.js, enabling non-blocking, asynchronous operations. It lets JavaScript code perform I/O operations without waiting for each to complete, which can make applications more efficient and performant. Understanding evented I/O Evented I/O is built around events and callbacks. When an I/O operation is initiated, it… Continue reading What is evented I/O for V8 JavaScript?
How to Sort Object Array by Boolean Property in JavaScript
Sorting an object array by a boolean property in JavaScript can be efficiently accomplished by leveraging the sort() method. This guide will demonstrate the process using clean, idiomatic examples suitable for any level of engineering expertise. Understanding the sort method JavaScript arrays have a built-in sort() method that allows for custom sorting logic via a comparator function. When sorting… Continue reading How to Sort Object Array by Boolean Property in JavaScript
Structs in JavaScript
JavaScript doesn’t have a dedicated struct keyword like C or C++, but structures can be mimicked using objects. This guide covers how to create data structures akin to structs using JavaScript objects, harnessing prototypes for methods, and incorporating user input to populate these structures. How to define a struct in JavaScript In JavaScript, the closest entity… Continue reading Structs in JavaScript
React’s useState Hook
what is useState ? useState is a special function in React that allows functional components to use and manage state. Before hooks were introduced, state management was exclusive to class components, but with hooks, functional components can also keep track of their own state. Basic Syntax import React, { useState } from ‘react’; function ExampleComponent()… Continue reading React’s useState Hook
Understanding JavaScript Promises
Introduction: JavaScript Promises are a powerful and essential feature in modern web development, providing a streamlined way to handle asynchronous operations. Introduced in ECMAScript 6 (ES6), promises simplify the management of asynchronous code, making it more readable and maintainable. Promise: Promise is an object representing the eventual completion or failure of an asynchronous operation and… Continue reading Understanding JavaScript Promises
Difference Between PUT and PATCH Request
In the realm of web development and API design, HTTP methods play a crucial role. Two such methods, PUT and PATCH, are often used for updating resources, but they differ significantly in their approach. Let’s delve into the distinctions between these methods to gain a comprehensive understanding of when and how to use them. PUT… Continue reading Difference Between PUT and PATCH Request
JavaScript code that generates a passcode by encoding the Base64 of existing parameters from the URL and timestamp. Then, load the URL by adding this generated passcode as an additional parameter using the debug console.
const getParameterByName = (name, url) => { try { if (!url) url = window.location.href; name = name.replace(/[[]]/g, “$&”); let regex = new RegExp(“[?&]” + name + “(=([^&#]*)|&|#|$)”), results = regex .exec(url); if (!results) return null; if (!results[2]) return ‘ ‘; return decodeURIComponent(results[2].replace(/+/g, ” “)); } catch (e) { console.error(“Err@ FN getParameterByName”, e); } } //routeId… Continue reading JavaScript code that generates a passcode by encoding the Base64 of existing parameters from the URL and timestamp. Then, load the URL by adding this generated passcode as an additional parameter using the debug console.
every() function in JavaScript
Executes a function for each array element. Returns true if the function returns true for all elements. Returns false if the function returns false for one element. Sample code Here log will be true because every element in the array satisfies the condition. If the value of array is [11,2,4,6,8], the output will be zero… Continue reading every() function in JavaScript