Helper function for exhaustive checks of discriminated unions in TypeScript
ES2015-compliant shim for Number.isNaN - the global isNaN returns false positives.
A querystring parser that supports nesting and arrays, with a depth limit
parse SPDX license expressions
Does this JS environment support the `name` property on functions?
If available, the `Object.prototype.__proto__` accessor and mutator, call-bound
Store information about any JS value in a side channel. Uses WeakMap if available.
ES6 spec-compliant RegExp.prototype.flags shim.
Which kind of Typed Array is this JavaScript value? Works cross-realm, without `instanceof`, and despite Symbol.toStringTag.
Returns true if a value has the characteristics of a valid JavaScript data descriptor.
Which kind of Collection (Map, Set, WeakMap, WeakSet) is this JavaScript value? Works cross-realm, without `instanceof`, and despite Symbol.toStringTag.
ES5 spec-compliant shim for String.prototype.trim
Store information about any JS value in a side channel, using a linked list
Binary serialization of arbitrarily complex structures that sort element-wise
The official TypeScript library for the Kernel API
Store information about any JS value in a side channel, using a Map
Is this value a JS Boolean? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Is this value negative zero? === will lie to you
Compute the cosine of a double-precision floating-point number on [-π/4, π/4].
escape Markdown control characters
Parser combinator library for JavaScript
Compute the sine of a double-precision floating-point number on [-π/4, π/4].
Resolve npm package details, like name and base path, given an absolute path to a file inside a package
Is this value a JS Number object? This module works cross-realm/iframe, and despite ES6 @@toStringTag.