js-assert-types
Parses, serializes, and manipulates MIME types, according to the WHATWG MIME Sniffing Standard
Esprima-compatible implementation of the Mozilla JS Parser API
TypeScript definitions for http-assert
Extra assertions on top of node's assert module
A robust, ES3 compatible, "has own property" predicate.
Is this value a JS SharedArrayBuffer?
Is this specifier a node.js core module?
Is this value a JS ArrayBuffer?
Helper function for exhaustive checks of discriminated unions in TypeScript
Which kind of boxed JS primitive is this?
TypeScript definitions for koa
What is the type of this builtin JS value?
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 value a JS regex? Works cross-realm/iframe, and despite ES6 @@toStringTag
Assert that two Node-API data types are equal.
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.
Robustly get the byte offset of a Typed Array
Get the byte length of an ArrayBuffer, even in engines without a `.byteLength` method.
Synchronous validation of a path existing either as a file or as a directory.
Robustly get the byte length of a Typed Array
Does this JS environment support the `name` property on functions?
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