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: findlastindex
javascript built-in: array: lastindexof
javascript built-in: regexp: lastindex
javascript built-in: string: lastindexof
javascript built-in: typedarray: findlastindex
javascript built-in: typedarray: lastindexof
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