Front End Web Development Lead Interview Questions

187 front end web development lead interview questions shared by candidates

Asked me to write a throttle function in javascript. Well, essentially...he wanted me to write a function that would call another function, but not if it had been called within a certain set time, which is essentially what a throttle function is. I completely flailed, but it's a useful function to have...probably why they put it in the underscore library which is what I based this answer on.
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Front End Web Developer

Interviewed at Google

4.4
Aug 15, 2014

Asked me to write a throttle function in javascript. Well, essentially...he wanted me to write a function that would call another function, but not if it had been called within a certain set time, which is essentially what a throttle function is. I completely flailed, but it's a useful function to have...probably why they put it in the underscore library which is what I based this answer on.

Imagine you had three boxes One contains two black marbles One contains two white marbles One contains both a black and a white marble Each box was labeled with their correct contents (BB, WW, BW). However a malevolent intern has swapped the labels so that they are all incorrect. You are allowed to take one marble out of a box and look at it, without looking inside. Using this method, what is the minimum number of draws you need to determine the contents of all three boxes?
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Front End Web Developer

Interviewed at Ad Exchange Group

4.2
Aug 14, 2016

Imagine you had three boxes One contains two black marbles One contains two white marbles One contains both a black and a white marble Each box was labeled with their correct contents (BB, WW, BW). However a malevolent intern has swapped the labels so that they are all incorrect. You are allowed to take one marble out of a box and look at it, without looking inside. Using this method, what is the minimum number of draws you need to determine the contents of all three boxes?

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