`Array.prototype.concat`, but made safe by ignoring Symbol.isConcatSpreadable
Is this value a JS WeakRef? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Featherweight assert module
`Iterator.prototype`, or a shared object to use.
Is this value a JS Map? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Type check values
Determine if a value is an ES6 Symbol or not.
Get the byteOffset out of a DataView, robustly.
Is this value an ES BigInt?
Robustly get the [[Prototype]] of an object
Get the byteLength out of a DataView, robustly.
An ES2015 spec-compliant `Function.prototype.name` shim
Power Assert in JavaScript
List of node.js builtin modules
A function that returns the normally hidden `AsyncFunction` constructor
Is this an arguments object? It's a harder question than you think.
A function that returns the normally hidden `GeneratorFunction` constructor
Power Assert feature enhancer for assert function/object
Detect native Symbol.toStringTag support.
Detect native Float32Array support.
Get the ArrayBuffer out of a DataView, robustly.
Node.js 18's node:test, as an npm package
Check if an environment is little endian.
Test if an object has a specified property.