Javascript Software Engineer Interview Questions

98 javascript software engineer interview questions shared by candidates

1) write the programs to clear existing options in dropDown and to add new options (data given in JSON format). 2)write the programs to Filter input field using regular expression 3) write the programs to navigate between pages. 4) Find the sum of each row as well as that of each column in 2 dimensional matrix ( m X n). 5) what are single page applications. How are spa's useful.
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Software Engineer ( Javascript Developer)

Interviewed at i-exceed technology solutions

2.9
Mar 21, 2016

1) write the programs to clear existing options in dropDown and to add new options (data given in JSON format). 2)write the programs to Filter input field using regular expression 3) write the programs to navigate between pages. 4) Find the sum of each row as well as that of each column in 2 dimensional matrix ( m X n). 5) what are single page applications. How are spa's useful.

Main benefit of React and other similar Javascript frameworks? How would you define a component? React class components versus functional components? What is virtual dom and why is it used? What is state management? Benefits and downsides of GraphQL? CSS in JS versus SCSS/CSS? Frontend SEO optimisation (Lighthouse)? How would you solve content shifting on load? Javascript testing, unit and integration testing?
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Software engineer Javascript

Interviewed at Comsysto Reply

4.5
Jan 9, 2023

Main benefit of React and other similar Javascript frameworks? How would you define a component? React class components versus functional components? What is virtual dom and why is it used? What is state management? Benefits and downsides of GraphQL? CSS in JS versus SCSS/CSS? Frontend SEO optimisation (Lighthouse)? How would you solve content shifting on load? Javascript testing, unit and integration testing?

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