Determine if the current node version supports the `--preserve-symlinks` flag.
string representations of objects in node and the browser
Info about node `exports` field support: version ranges, categories, etc.
Is this specifier a node.js core module?
node's assert.deepEqual algorithm
Is this JS value callable? Works with Functions and GeneratorFunctions, despite ES6 @@toStringTag.
Get the ArrayBuffer out of a TypedArray, robustly.
Get the byteOffset out of a DataView, robustly.
Get the byteLength out of a DataView, robustly.
Get the ArrayBuffer out of a DataView, robustly.
Determine if the JS environment has Symbol support. Supports spec, or shams.
Determine if the JS environment has `Symbol.toStringTag` support. Supports spec, or shams.
Which kind of Typed Array is this JavaScript value? Works cross-realm, without `instanceof`, and despite Symbol.toStringTag.
Does this JS environment support the `name` property on functions?
Is this value negative zero? === will lie to you
Does the environment have full property descriptor support? Handles IE 8's broken defineProperty/gOPD.
Returns an array of Typed Array names that are available in the current environment
Determine if a value is an ES6 Symbol or not.
Which kind of Collection (Map, Set, WeakMap, WeakSet) is this JavaScript value? Works cross-realm, without `instanceof`, and despite Symbol.toStringTag.
Determine if a function is a native generator function.
Is this value a JS FinalizationRegistry? 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.
Is this value a JS WeakRef? This module works cross-realm/iframe, and despite ES6 @@toStringTag.
Is this value a JS Boolean? This module works cross-realm/iframe, and despite ES6 @@toStringTag.