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.
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.
Store information about any JS value in a side channel, using a linked list
Is this value a JS Boolean? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Store information about any JS value in a side channel, using a Map
escape Markdown control characters
Is this value negative zero? === will lie to you
Is this value a JS Number object? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
test whether SPDX expressions satisfy licensing criteria
Resolve npm package details, like name and base path, given an absolute path to a file inside a package
Is this value a JS Date object? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Unbox a boxed JS primitive value.
Set a function's length property
Type check values
Is this value a JS Map? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Determine if a value is an ES6 Symbol or not.
`Iterator.prototype`, or a shared object to use.
Get the ArrayBuffer out of a TypedArray, robustly.
Power Assert in JavaScript
Get the byteLength out of a DataView, robustly.
`Array.prototype.concat`, but made safe by ignoring Symbol.isConcatSpreadable
An ES2015 spec-compliant `Function.prototype.name` shim