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Javascript Software Engineer Interview Questions

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1,199 javascript software engineer interview questions shared by candidates

1.Coding MCQ Test a. Code to write function to find nearest number closest to 0 b. Write a function to find factorial of a number c. Prototype of a class based question d. Output questions on var/let/const,prototype,hoisting,typeOf, "4"==4 2. Technical Round a. Write code in vanilla Javascript to create an input box taking number and two buttons of + and - to increment and decrement and some css on buttons b. Write code to find sum (a) (b) in es6 syntax c. What is Hoisting,how to avoid it? d. What is currying and bind,call,apply method? e. What is this keyword? f. How to define a function globally in js? g. What is inheritence in js? h. Write a generic function to add an array object in a json object i. Selectors in html j. Closure and its purpose of use 3. Managerial Round a. General Questions about Introduction b. Code to solve this pattern [11 ,6, 1, -4 ,1 ,6, 11, 16] c. CTC and Expected CTC
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Javascript Developer

Interviewed at Dassault Systèmes

3.9★
Nov 23, 2021

1.Coding MCQ Test a. Code to write function to find nearest number closest to 0 b. Write a function to find factorial of a number c. Prototype of a class based question d. Output questions on var/let/const,prototype,hoisting,typeOf, "4"==4 2. Technical Round a. Write code in vanilla Javascript to create an input box taking number and two buttons of + and - to increment and decrement and some css on buttons b. Write code to find sum (a) (b) in es6 syntax c. What is Hoisting,how to avoid it? d. What is currying and bind,call,apply method? e. What is this keyword? f. How to define a function globally in js? g. What is inheritence in js? h. Write a generic function to add an array object in a json object i. Selectors in html j. Closure and its purpose of use 3. Managerial Round a. General Questions about Introduction b. Code to solve this pattern [11 ,6, 1, -4 ,1 ,6, 11, 16] c. CTC and Expected CTC

The first silly question : how can you check the object is null or not without if condition. not even single Question on React JS, because the interviewer is not knowing the React and try to Question in Angular. overall worst experience. The first silly question : how can you check the object is null or not without if condition. not even single Question on React JS, because the interviewer is not knowing the React and try to Question in Angular. overall worst experience.
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React Developer Javascript

Interviewed at Wissen Infotech

3.8★
Oct 17, 2018

The first silly question : how can you check the object is null or not without if condition. not even single Question on React JS, because the interviewer is not knowing the React and try to Question in Angular. overall worst experience. The first silly question : how can you check the object is null or not without if condition. not even single Question on React JS, because the interviewer is not knowing the React and try to Question in Angular. overall worst experience.

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