A helper to optimistically set Symbol.toStringTag, when possible.
Is this value a JS regex? Works cross-realm/iframe, and despite ES6 @@toStringTag
ES Object-related atoms: Object, ToObject, RequireObjectCoercible
Give a regex, get a robust predicate function that tests it against a string.
Is this value a JS String object or primitive? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
A simple list of possible Typed Array names.
Parse JavaScript one character at a time to look for snippets in Templates. This is not a validator, it's just designed to allow you to have sections of JavaScript delimited by brackets robustly.
Get the byte length of an ArrayBuffer, even in engines without a `.byteLength` method.
Robustly get the byte length of a Typed Array
Robustly get the byte offset of a Typed Array
TypeScript definitions for http-assert
ECMAScript spec abstract operations.
Like a Set, but provides the index of the `key` in the backing array
ES2015-compliant shim for Object.is - differentiates between -0 and +0
Does this environment have the ability to get the [[Prototype]] of an object on creation with `__proto__`?
Is this value a JS WeakSet? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Is this value a JS Set? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Robustly get an object's own property keys (strings and symbols), including non-enumerables when possible
Get and robustly cache all JS language-level intrinsics at first require time
Is this value a JS WeakMap? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Helper function for exhaustive checks of discriminated unions in TypeScript
ES2015-compliant shim for Number.isNaN - the global isNaN returns false positives.
Same as JSON but with added support for `Date`, `undefined`, `Map`, `Set`, and more.
Does this JS environment support the `name` property on functions?