Frontend Engineer Interview Questions

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Print all combinations of a string which have a specific substring in the same order as given. For ex: string is ABCDE, print all combinations of this string which have 'BC' as substring ('CB' not allowed, only 'BC').
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Senior Frontend Developer

Interviewed at Sokrati

3.6
Aug 31, 2015

Print all combinations of a string which have a specific substring in the same order as given. For ex: string is ABCDE, print all combinations of this string which have 'BC' as substring ('CB' not allowed, only 'BC').

Q. What is a Closure in javascript? Q. console.log("a" + 20 +20); console.log(20+20+"a"); Q. Where are JS variables stored - Heap/Stack - where? Q. What is $ in jQuery? Q. How do you differentiate between Angular's $ & jQuery's $. Q. How can you implement multithreading in javascript? How can I execute multiple functions in javascript? Q. On click of a button, API is hit and html is rendered from Server. This HTML contains a button. I want to add an event saying alert[1); on this button. How can I do it? Given, the element id of the button to you in the callback. I don't want multiple alerts to fire.
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Software Engineer(Frontend)

Interviewed at Quovantis Technologies

4
Jan 27, 2017

Q. What is a Closure in javascript? Q. console.log("a" + 20 +20); console.log(20+20+"a"); Q. Where are JS variables stored - Heap/Stack - where? Q. What is $ in jQuery? Q. How do you differentiate between Angular's $ & jQuery's $. Q. How can you implement multithreading in javascript? How can I execute multiple functions in javascript? Q. On click of a button, API is hit and html is rendered from Server. This HTML contains a button. I want to add an event saying alert[1); on this button. How can I do it? Given, the element id of the button to you in the callback. I don't want multiple alerts to fire.

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