) 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 …

A third use is to produce logical XOR and logical XNOR. In both C and JavaScript, a && b performs a logical AND (true if both sides are true), and a & b performs a bitwise AND. a || b …

Mar 28, 2015 · In JavaScript, the values false, null, undefined, 0, -0, NaN, and '' (empty string) are "falsy" values. All other values are "truthy." All other values are "truthy." (1):7.1.2 Here's a truth …

Mar 29, 2022 · Unlike many similar languages, identifiers (such as functional and variable names) in Javascript can contain not only letters, numbers and underscores, but can also contain …

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.

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 …

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

Jan 24, 2013 · Ripped from my blog: keithdonegan.com. The Equality Operator (==) The equality operator (==) checks whether two operands are the same and returns true if they are the same …