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 …

Jun 20, 2017 · In javascript the => is the symbol of an arrow function expression. A arrow function expression does not have its own this binding and therefore cannot be used as a constructor …

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 …

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 …

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.

Jun 7, 2011 · The conditional (ternary) operator is the only JavaScript operator that takes three operands. This operator is frequently used as a shortcut for the if statement.

Mar 7, 2016 · What does $ {} (dollar sign and curly braces) mean in a string in JavaScript? Asked 9 years, 7 months ago Modified 1 year, 10 months ago Viewed 422k times

What's the difference between & and && in JavaScript? Asked 14 years, 1 month ago Modified 1 year, 6 months ago Viewed 143k times

Dec 11, 2009 · What is the difference between the !== operator and the != operator in JavaScript? Does it behave similarly to the === operator where it compares both value and type?

Jan 17, 2012 · What does the % do in JavaScript? A definition of what it is and what it does would be much appreciated.