If IsCallable(callbackfn) is false, throw a TypeError exception.
Is this JS value callable? Works with Functions and GeneratorFunctions, despite ES6 @@toStringTag.
Test if a double-precision floating-point numeric value is NaN.
Test if a double-precision floating-point numeric value is infinite.
Test if a finite double-precision floating-point number is an integer.
The assert module from Node.js, for the browser.
Test if a finite numeric value is an odd number.
code-red
Is this value a JS SharedArrayBuffer?
Test if a double-precision floating-point numeric value is positive zero.
Is this value a JS ArrayBuffer?
Test if a double-precision floating-point numeric value is negative zero.
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.
Is this specifier a node.js core module?
Test if a finite numeric value is an even number.
Synchronous validation of a path existing either as a file or as a directory.
Is this value a JS DataView? This module works cross-realm/iframe, does not depend on `instanceof` or mutable properties, and despite ES6 Symbol.toStringTag.
Is this value a JS regex? Works cross-realm/iframe, and despite ES6 @@toStringTag
Is this value a JS String object or primitive? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Is this value a JS WeakSet? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Generic options parameter handling.
assert with status codes
Is this value a JS Set? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Is this value a JS WeakMap? This module works cross-realm/iframe, and despite ES6 @@toStringTag.