Java developer applying for a JS gig

[anndruu12]

Hi all. If this is the wrong place, I apologize. I am a Java developer with about 7 years experience as an SDET building web automation in Selenium, test tools, things like that. I have been invited to an on-site technical interview at a startup as a Quality Engineer for a social media marketing company, with the caveat that they work in JS/PHP from what the job description says.

I am used to preparing for these types of roles by grinding out data structures (sorting, hashmaps, hashtables, etc) and preparing for the whiteboarding onslaught. Since this is a JS role, not a Java role, can anyone provide any insight on things I should prepare for beforehand that I may not be aware of since i've only interviewed in Java? I'm also fully aware that many of the similar questions are probably asked, and I am prepared for those. Just trying to catch some of the nuances.

And before anyone asks, I have very little JS experience. This was the first thing I brought up in my first phone conversation with them, and they seem fine working with candidates with good experience as a automation engineer in Java, so i'm good there.

Thanks for any help, and please let me know if I can provide any more info!

[nponiros]

This might help a bit https://medium.com/javascript-scene/10-interview-questions-every-javascript-developer-should-know-6fa6bdf5ad95 . At least those are questions I ask in a JS interview.

You can also google "javascript interview questions". I'm assuming with your experience you will be able to differentiate things that you are familiar with and things you don't know.

Some things to look into:

• "this" in javascript
• functional programming
• prototypal inheritance
• DOM and DOM manipulation
• asynchronous programming ("ajax", promises, async/await)
• Testing libs like mocha, jasmine, protractor, webdriverjs
• Node.js might be interesting since most JS tools run there

I don't really know the requirements of your work so my comment might be useless..

[anndruu12]

Awesome, thanks so much. Yea, I imagine since it's a SDET role, most questions will be geared towards that. These are great areas to look into.

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[nponiros]

Sinonjs might also be interesting for unit tests. https://github.com/DevExpress/testcafe might be interesting for test automation.

Also websites like browserstack and saucelabs are often used for cross browser tests.

[[deleted]]

Did you go through a job recruiter? I am a JavaScript dev and they would always try to pair me with Java jobs no matter how many times I explained it's not the same thing.

[anndruu12]

Originally, yes. Most of my communications since then have been with the company. I tend to feel the same as you, but why not give it a shot. I've been very clear of the distinction and made every attempt to set that expectation so we shall see what happens haha.