) in JavaScript only considers null or undefined as "nullish" values. If the left-hand side is any other value, even falsy values like "" (empty string), 0 , or false , it will not use the right-hand side:

Dec 11, 2008 · JavaScript has two sets of equality operators: === and !==, and their evil twins == and !=. The good ones work the way you would expect. The good ones work the way you …

Jun 7, 2011 · It's a little hard to google when all you have are symbols ;) The terms to use are "JavaScript conditional operator". If you see any more funny symbols in JavaScript, you should …

This operator is almost never used in JavaScript. Other programming languages (like C and Java) use it for performance reasons or to work with binary data. In JavaScript, it has questionable …

That is, JavaScript "short-circuits" the evaluation of Boolean operators and will return the value associated with either the first non-false variable value or whatever the last variable contains. …

Mar 7, 2016 · I haven't seen anything here or on MDN. I'm sure I'm just missing something. There's got to be some documentation on this somewhere.

In JavaScript there are 7 primitive types: undefined, null, boolean, string, number, bigint and symbol. Everything else is an object. Everything else is an object. The primitive types boolean …

Jan 25, 2009 · After reading your clarification, @Ates Goral's answer provides how to perform the same operation you're doing in C# in JavaScript. @Gumbo's answer provides the best way to …

Aug 9, 2011 · Not that these convert the numbers into Int32 -- while nearly everything else in javascript works on 64-bit doubles. – Sean McMillan Commented Aug 9, 2011 at 15:33

Mar 2, 2010 · In JavaScript, if you're looking for A or B, but not both, you'll need to do something similar to: