Array.prototype.includes
Determines whether or not an array includes the given value, returning a boolean value (unlike `indexOf`).
ECMAScript 5
Full support for the ECMAScript 5 specification. Features include `Function.prototype.bind`, Array methods like `indexOf`, `forEach`, `map` & `filter`, Object methods like `defineProperty`, `create` & `keys`, the `trim` method on Strings and many more.
javascript built-in: array: indexof
javascript built-in: array: lastindexof
javascript built-in: string: indexof
javascript built-in: string: lastindexof
javascript built-in: typedarray: indexof
javascript built-in: typedarray: lastindexof
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