`Array.prototype.every()`

Tests whether all elements pass the provided testing function.

Syntax

arr.every(callback, thisArg)

Name	Type	Required	Description
`callback`	`Function`	Yes	Predicate called with (element, index, array). Return truthy if the element passes.
`thisArg`	`any`	No	Value to use as `this` when executing the callback.

boolean — true if the callback returns truthy for every element; otherwise false.

console.log([2, 4, 6].every(n => n % 2 === 0));

Output

true

console.log([].every(n => n > 0));

Output

true

Short-circuits and returns false on the first failing element. Returns true for an empty array (vacuous truth). Use `some` to require just one match.