Test if a value is a regular expression string.
Test if a double-precision floating-point numeric value is infinite.
ECMAScript spec abstract operations.
Is this value a JS Set? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Test if a value is a Float64Array.
Test if a value is a Uint32Array.
typesafe assertion library for TypeScript 3.7+
Test if a value is a function.
ES2015-compliant shim for Object.is - differentiates between -0 and +0
Is this value a JS WeakMap? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Detect native Buffer support.
Robustly get an object's own property keys (strings and symbols), including non-enumerables when possible
Test if a value is a plain object.
Helper function for exhaustive checks of discriminated unions in TypeScript
Drop-in replacement for assert to give diff on deepEqual.
Get and robustly cache all JS language-level intrinsics at first require time
Is this value a JS WeakSet? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Node.js globbing for amqp-like topics
parse SPDX license expressions
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.
A querystring parser that supports nesting and arrays, with a depth limit
ES Proposal spec-compliant shim for Promise.allSettled
Does this JS environment support the `name` property on functions?