javascript assert tasks for development tools.
Extra assertions on top of node's assert module
A robust, ES3 compatible, "has own property" predicate.
Is this specifier a node.js core module?
Is this value a JS ArrayBuffer?
Is this value a JS SharedArrayBuffer?
Which kind of boxed JS primitive is this?
Is this value a JS regex? Works cross-realm/iframe, and despite ES6 @@toStringTag
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.
What is the type of this builtin JS value?
Is this value a JS String object or primitive? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Robustly get the length of a Typed Array
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.
Synchronous validation of a path existing either as a file or as a directory.
Get the byte length of an ArrayBuffer, even in engines without a `.byteLength` method.
Robustly get the byte offset of a Typed Array
correct invalid SPDX expressions
Robustly get the byte length of a Typed Array
Is this value a JS Set? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Does this environment have the ability to get the [[Prototype]] of an object on creation with `__proto__`?
Is this value a JS WeakMap? 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.
Does this JS environment support the `name` property on functions?
Which kind of Typed Array is this JavaScript value? Works cross-realm, without `instanceof`, and despite Symbol.toStringTag.