inspect-js/which-builtin-type

Determine if the JS environment has `Symbol.toStringTag` support. Supports spec, or shams.

Array#isArray for older browsers

My shareable eslint config

Use `npx aud` instead of `npm audit`, whether you have a lockfile or not!

Command line tool for generating a changelog from git tags and commit history

Evaluates javascript code blocks from markdown files.

A better forEach

Determine if the JS environment has Symbol support. Supports spec, or shams.

Detect if we were run as a result of `npm publish`

Command line tool for creating or updating a .npmignore file based on .gitignore.

the Istanbul command line interface

string representations of objects in node and the browser

Ensure that when you `npm publish`, the "latest" tag is only set for the truly latest version.

tap-producing test harness for node and browsers

An ES2015 spec-compliant `Function.prototype.name` shim

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

Determine if a function is a native generator function.

Determine if a function is a native async function.

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

Is this value a JS regex? Works cross-realm/iframe, and despite ES6 @@toStringTag

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

Which kind of boxed JS primitive is this?

Which kind of Collection (Map, Set, WeakMap, WeakSet) is this JavaScript value? Works cross-realm, without `instanceof`, and despite Symbol.toStringTag.

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

Determine if the JS environment has BigInt support.

Function that returns an arbitrary arrow function, or undefined if arrow function syntax is unsupported.

Function that returns an arbitrary `async function`, or undefined if `async function` syntax is unsupported.

Returns an arbitrary generator function, or undefined if generator syntax is unsupported.

ES6 spec-compliant Object.assign shim. From https://github.com/es-shims/es6-shim