The questions below were asked in a preliminary check before the actual interview. The role itself was for a “JavaScript Engineer”. This particular set of questions is from a job I applied to over a year ago. I’ve chosen to share them here because I think readers of this blog would ...
JavaScript Interview Questions Closures, scope, hoisting, the JS object model, and more. Learn all the "gotchas" to tricky JavaScript interview questions! Try some questions now Rich got the job at Apple: Thanks to your site, I have offers from Apple, Facebook and Google. That's a ...
What is the purpose of 'this' operator in JavaScript? JavaScript著名关键字始终引用当前context。 What are the valid scopes of a variable in JavaScript? 变量的范围是程序在其中定义的区域。 JavaScript变量只有两个范围。 全局变量-全局变量具有全局范围,这意味着它在JavaScript代码中的任何位置都可见。 局部变...
Back to Interview Questions 1 What is the difference between undefined and not defined in JavaScript? View the answer 2 What is a "closure" in JavaScript? View the answer 3 What will be the output of the code below? var trees = ["pine","apple","oak","maple","cherry"];delete ...
Here are someJAVASCRIPT INTERVIEW QUESTIONS Q.1 What are the types of errors we encounter in Javascript ? Logical Errors : These are the errors that occur due to execute wrong logic on a function which has a different operation to perform. ...
The basic JavaScript coding interview questions are: 1. Write a JavaScript function to calculate the sum of two numbers.When managers ask this question, they are looking for the candidate’s basic understanding of JavaScript. They assess their understanding of basic syntax along with problem-...
Comprehensive, community-driven list of essential JavaScript interview questions. Whether you're a candidate or interviewer, these interview questions will help prepare you for your next JavaScript interview ahead of time.
Below are some of the top JavaScript interview questions for freshers (with proper answers). 1. What is JavaScript? JavaScript, also known as JS, is a popular dynamic programming language used for front-end development. The primary purpose of using JS on web pages is to show things in a ...
What is asynchronous programming, and why is it important in JavaScript? Synchronous programming means that, barring conditionals and function calls, the code is executed sequentially from top-to-bottom, blocking on long-running tasks such as network requests and disk I/O. ...
And it contains interview questions in various directions, such as React, HTTP, etc. But many of them are about code articles: One part examines your programming skills Part of your React/Vue capabilities through code I threw all the code of the warehouse to codesandbox and codepen, and cont...