If you declare your vars outside of a loop, it will out perform the standard for loop and the array.foreach(). Checkout the JS Perf run I did compared to a bunch of other ways to loop.
JSPerf : Addam Driver Revision 475
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Throughout my career I've been asked to do "code challenges" when looking for a job. It's pretty common considering I…
This isn't MUCH of a surprise however it's worth noting! Casting a variable to a string vs. "String()" or "myVar.
So I was on a project to "flatten JSON objects". I went through some standard way of doing it.