One question in the recent interview is to write at least 15 array methods. The array method is usually used in 6-7. Suddenly, I have to write 15 at once, but I am still a little stuck. I will organize a wave today and review it later. . Array.map() map()method creates a new...
JavaScript Cheat Sheets JavaScript Cheat SheetbyDaveChild JavaScript methods and functions, a guide to regular expressions and the XMLHttpRequest object. Regular Expressions Syntax ^ Start of string $ End of string . Any single character ...
Methods dogs.toString(); // convert to string: results "Bulldog,Beagle,Labrador" dogs.join(" * "); // join: "Bulldog * Beagle * Labrador" dogs.pop(); // remove last element dogs.push("Chihuahua"); // add new element to the end dogs[dogs.length] = "Chihuahua"; // the same ...
Javascript Promise Methods With Polyfill Example: A Cheat Sheet for Developers by Rahul SharmaNovember 15th, 2022 Too Long; Didn't ReadPromise is a way to handle asynchronous operations in JavaScript. Promise consists of three states: Pending: Neither fulfilled nor rejected. Fulfilled: Completed Prom...
JavaScript Cheat Sheet Our JavaScript cheat sheet is a must-have resource for both beginner and experienced web enthusiasts! This comprehensive cheat sheet covers all the essential concepts in JavaScript, such as loops, if statements, string methods, DOM manipulation, and some of the powerful ...
String Properties and Methods .length Return the number of characters in a string .substring() Extract characters from a string, varstr="Hello world!"; var res =str.substring(1,4); -> ell If else if(condition1) {// code}elseif(condition2) {// code}else{// cod...
Window Methods alert() blur() clearInterval() clearTimeout() close() confirm() focus() moveBy() moveTo() open() print() prompt() resizeBy() resizeTo() scrollBy() scrollTo() setInterval() setTimeout() Navigator Properties appCodeName ...
Some of the methods it supports include: Math.abs() Method This method returns the absolute value of a number, ensuring the result is positive. Here's an example that demonstrates the use of the “Math.abs()” method: let negativeNumber = -5; ...
16. What is the difference between exec () and test () methods in javascript? test () and exec () are RegExp expression methods used in javascript. We'll use exec () to search a string for a specific pattern, and if it finds it, it'll return the pattern directly; else, it'll...
The Ultimate JavaScript Cheat Sheet Explore JavaScript Further We considerJavaScript one of the top programming languages to masterfor the future. And we recommend diving into advanced concepts likeJavaScript array methodsonce you have a grasp of the basics of JavaScript. ...