A pure javascript JPEG encoder and decoder

Pretty-prints a Buffer

string representations of objects in node and the browser

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.

Strict borsh compatible de/serializer

Determine if the current node version supports the `--preserve-symlinks` flag.

Is this JS value callable? Works with Functions and GeneratorFunctions, despite ES6 @@toStringTag.

Determine if a function is a native generator function.

Which kind of Typed Array is this JavaScript value? Works cross-realm, without `instanceof`, and despite Symbol.toStringTag.

Returns an array of Typed Array names that are available in the current environment

Does the environment have full property descriptor support? Handles IE 8's broken defineProperty/gOPD.

Is this value a JS Boolean? This module works cross-realm/iframe, and despite ES6 @@toStringTag.

Is this specifier a node.js core module?

Does this JS environment support the `name` property on functions?

Is this value an ES BigInt?

Is this value negative zero? === will lie to you

Determine if the JS environment has BigInt support.

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.