Q651. What are different event loops?
In JavaScript, there are multiple event loops that can be used depending on the context of your application. The most common event loops are: 1. The Browser Event Loop 2....
Technical Question Bank · Peer-Reviewed
Job Interview Questions and Answers Directory
Search and filter frequently asked interview questions across technical, programming, and behavioral domains. Tailor your interview preparation by difficulty for freshers or experienced developers (780 available).
Active:
Tag: js ×
Q652. Is it possible to use React without rendering HTML?
It is possible. Below are the possible options: ```jsx harmony render() { return false } ``` ```jsx harmony render() { return true } ``` ```jsx harmony render() { return ...
Q653. What is the purpose of queueMicrotask?
The `queueMicrotask` function is used to schedule a microtask, which is a function that will be executed asynchronously in the microtask queue. The purpose of `queueMicro...
Q654. How do you use javascript libraries in typescript file?
It is known that not all JavaScript libraries or frameworks have TypeScript declaration files. But if you still want to use libraries or frameworks in your TypeScript fil...
Q655. What are the differences between promises and observables?
Some of the major difference in a tabular form | Promises | Observables | | ------------------------------------------------------------------ | -------------------------...
Q656. What is heap?
Heap(Or memory heap) is the memory location where objects are stored when we define variables. i.e, This is the place where all the memory allocations and de-allocation t...
Q657. What is an event table?
Event Table is a data structure that stores and keeps track of all the events which will be executed asynchronously like after some time interval or after the resolution ...
Q658. What is a microTask queue?
Microtask Queue is the new queue where all the tasks initiated by promise objects get processed before the callback queue. The microtasks queue are processed before the n...
Q659. What is the difference between shim and polyfill?
A shim is a library that brings a new API to an older environment, using only the means of that environment. It isn't necessarily restricted to a web application. For exa...
Q660. How do you detect primitive or non primitive value type?
In JavaScript, primitive types include boolean, string, number, BigInt, null, Symbol and undefined. Whereas non-primitive types include the Objects. But you can easily id...