The nullish coalescing operator (??) 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 …

Novice JavaScript developers need to know that the "not not" operator is using implicitly the original loose comparison method instead of the exact === or !== operators and also the …

Feb 7, 2009 · What is the difference between == and === in JavaScript? I have also seen != and !== operators. Are there more such operators?

Dec 6, 2015 · What does the % do in JavaScript? A definition of what it is and what it does would be much appreciated.

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. …

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

Mar 2, 2010 · javascript if-statement boolean-expression See similar questions with these tags.

Closed 12 years ago. How can I use modulo operator (%) in calculation of numbers for JavaScript projects?

This function below doesn’t work like I want it to; being a JS novice I can’t figure out why. I need it to wait 5 seconds before checking whether the newState is -1. Currently, it doesn’t wait, i...

How to remove all event listeners of a DOM object in JavaScript? Asked 14 years, 10 months ago Modified 1 month ago Viewed 239k times