Which kind of Collection (Map, Set, WeakMap, WeakSet) is this JavaScript value? Works cross-realm, without `instanceof`, and despite Symbol.toStringTag.
Does this JS environment support the `name` property on functions?
Store information about any JS value in a side channel, using a linked list
ES5 spec-compliant shim for String.prototype.trim
Store information about any JS value in a side channel, using a Map
escape Markdown control characters
Is this value a JS Boolean? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Is this value a JS Number object? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Which kind of Typed Array is this JavaScript value? Works cross-realm, without `instanceof`, and despite Symbol.toStringTag.
Unbox a boxed JS primitive value.
test whether SPDX expressions satisfy licensing criteria
Is this value a JS Date object? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Is this value negative zero? === will lie to you
Power Assert in JavaScript
`Iterator.prototype`, or a shared object to use.
Type check values
Resolve npm package details, like name and base path, given an absolute path to a file inside a package
Is this value a JS Map? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Is this value an ES BigInt?
Get the ArrayBuffer out of a TypedArray, robustly.
Get the byteLength out of a DataView, robustly.
Set a function's length property
Robustly get the [[Prototype]] of an object
`Array.prototype.concat`, but made safe by ignoring Symbol.isConcatSpreadable