Sort an object's keys, including an optional key list
Test if a finite double-precision floating-point number is an integer.
ES2015-compliant shim for Number.isNaN - the global isNaN returns false positives.
The node.js assert module, re-packaged for web browsers.
A querystring parser that supports nesting and arrays, with a depth limit
Return a function which tests if every element in an array-like object passes a test condition.
Does this JS environment support the `name` property on functions?
Store information about any JS value in a side channel. Uses WeakMap if available.
If available, the `Object.prototype.__proto__` accessor and mutator, call-bound
Which kind of Collection (Map, Set, WeakMap, WeakSet) 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.
Standard assertion utilities.
ES6 spec-compliant RegExp.prototype.flags shim.
Detect native function name support.
Array of "void elements" defined by the HTML specification.
Which kind of Typed Array is this JavaScript value? Works cross-realm, without `instanceof`, and despite Symbol.toStringTag.
Store information about any JS value in a side channel, using a linked list
Store information about any JS value in a side channel, using a Map
Is this value negative zero? === will lie to you
Is this value a JS Boolean? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
escape Markdown control characters
Is this value a JS Number object? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Is this value a JS Date object? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Unbox a boxed JS primitive value.