Jun 7, 2011 · What is the ?: (question mark and colon operator aka. conditional or "ternary") operator and how can I use it?

Related to Is there a "null coalescing" operator in JavaScript? - JavaScript now has a ?? operator which I see in use more frequently. Previously most JavaScript code used ||. let userAge =

Dec 11, 2008 · I'm using JSLint to go through JavaScript, and it's returning many suggestions to replace == (two equals signs) with === (three equals signs) when doing things like comparing …

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 …

Mar 28, 2015 · How does the double exclamation (!!) work in JavaScript? [duplicate] Asked 10 years, 2 months ago Modified 1 year, 3 months ago Viewed 243k times

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

What's the difference between & and && in JavaScript? Asked 13 years, 9 months ago Modified 1 year, 2 months ago Viewed 142k times

Mar 29, 2022 · Javascript does have types; and in any case, how is the dollar sign even related to that? It's just a character that happens to be a legal identifier in Javascript.

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 7, 2016 · What does $ {} (dollar sign and curly braces) mean in a string in JavaScript? Asked 9 years, 3 months ago Modified 1 year, 6 months ago Viewed 416k times