Is this JS value callable? Works with Functions and GeneratorFunctions, despite ES6 @@toStringTag.

Is this value a JS Boolean? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

Is this value a JS regex? Works cross-realm/iframe, and despite ES6 @@toStringTag

Light ECMAScript (JavaScript) Value Notation - human written, concise, typed, flexible

Is this value a JS Number object? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

Is this value a JS FinalizationRegistry? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

Determine if a function is a native async function.

Is this value a JS Date object? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

Determine if a value is an ES6 Symbol or not.

Is this value a JS String object or primitive? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

Is this value an ES BigInt?

Is this value a JS WeakRef? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

Is this value negative zero? === will lie to you

Is this value a JS Map? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

This is js library for ewallet

Returns true if an object was created by the `Object` constructor, or Object.create(null).

Is this an arguments object? It's a harder question than you think.

Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when necessary, resulting in much faster code execution and initialization time, and a bet

Is this value a JS SharedArrayBuffer?

Is this value a JS Typed Array? This module works cross-realm/iframe, does not depend on `instanceof` or mutable properties, and despite ES6 Symbol.toStringTag.