In this guide, we’ll go through some of the common gotchas that you might find in a JavaScript interview. Interviewers probably won’t directly ask these questions, but they might ask you something relative to them or to do a problem involving them. var vs. let This is one of the most...
Common JavaScript coding interview questions Some of the common JavaScript coding interview questions typically cover these topics: checking for palindrome, finding missing/largest numbers, object manipulation, removing duplicates, merging, etc.1. Write a function to check if a given string is a palin...
We have compiled a list of the most common interview questions you may face at your next JavaScript interview to help you. A quick review of them will refresh your knowledge of the language and give you confidence that you can supply the correct answers. 53 frequently asked JavaScript interview...
JavaScript was developed by Brendan Eich of Netscape Java was developed at Sun Microsystems. While the two languages share some common syntax, they were developed independently of each other and for different audiences. Java is a full-fledged programming language tailored for network computing it incl...
Questions Hands On Coding Questions Do Your Homework Your Resume is the Key the Job Application Process the Prelude the Interview Process Common Interview Mistakes Behavioral Interview Questions Salary Questions Your Turn to Ask Questions the Postlude Handling Offers THIS IS JUST AN "INTRODUCTORY SAMPLE...
Common Memory Leaks and How to Avoid Them Memory leaks occur when your application holds onto memory it no longer needs. Let’s look at some patterns that tend to create memory leaks, so you’ll know to avoid them: The Global Variable Trap One of the sneakiest memory leaks comes from ...
Event delegation is the idea that something other than the target of an action resolves the event raised by that action. An example of event delegation would be having the document element handle the click action of a button. A fairly common occurrence, is to have a “ul” element handle ...
5.What do these two examples have in common? Short Answer: Both create potential memory leaks, especially in Internet Explorer. Example 1: varobj=document.getElementById('adiv');document.getElementById('adiv').ptr=obj; Long Answer:
Interview questions 1、ES6 和 CommonJS 对循环引用的处理有什么不同(猿辅导) 2、ES6 有哪些新特性,说一下你用过的 ES6 的新特性(百度、快手、字节、知乎、小米) 3、如何用 ES5 实现 ES6 的 class 的 static 和 private(百度) 4、 map 的返回值(网易) 5、 map 记录出现次数(小米) 6、Map 和 weak...
This is one of the most common errors in JavaScript. In strict mode, attempting to do so throws an error. Eliminates this coercion. Without strict mode, a reference to a this value of null or undefined is automatically coerced to the global. This can cause many headfakes and pull-out-...