2,889 results for "keywords:"check""

Get the native type of a value.

Updated August 25, 2021 by @doowb

Check if something is a Node.js stream

Updated August 10, 2021 by @sindresorhus

Check if argv has a specific flag

Updated July 19, 2021 by @sindresorhus

Detect the file type of a Buffer/Uint8Array/ArrayBuffer

Updated December 28, 2021 by @sindresorhus

Update notifications for your CLI app

Updated January 10, 2022 by @sindresorhus

Lint files staged by git

Updated February 13, 2022 by @okonet

Check if a value is a plain object

Updated April 16, 2021 by @sindresorhus

Check if a path is a file, directory, or symlink

Updated January 27, 2021 by @sindresorhus

Returns true if an object was created by the `Object` constructor, or Object.create(null).

Updated September 9, 2020 by @stevenvachon

Returns true if a value exists, false if empty. Works with deeply nested values using object paths.

Updated August 25, 2021 by @jonschlinkert

Check if the character represented by a given Unicode code point is fullwidth

Updated April 16, 2021 by @sindresorhus

Returns true if a number or string value is a finite number. Useful for regex matches, parsing, user input, etc.

Updated July 4, 2018 by @doowb

Check if a value is an object

Updated April 16, 2021 by @sindresorhus

Check if a URL is absolute

Updated August 11, 2021 by @sindresorhus

Find newer versions of dependencies than what your package.json allows

Updated February 23, 2022 by @raine

unist utility to check if a node passes a test

Updated July 21, 2021 by @wooorm

Check if something is a promise

Updated April 16, 2021 by @sindresorhus

Check if a path is the current working directory

Updated August 11, 2021 by @sindresorhus

Returns `true` if the given string looks like a glob pattern or an extglob pattern. This makes it easy to create code that only uses external modules like node-glob when …

Updated March 27, 2019 by @doowb

Check if a path is in the current working directory

Updated May 3, 2021 by @sindresorhus

A little library for asserting types and values.

Updated January 19, 2020 by @philbooth

Check whether a request can be retried based on the `error.code`

Updated April 17, 2021 by @floatdrop

Check if a string is an IP address

Updated January 1, 2022 by @sindresorhus

Returns true if the platform is windows. UMD module, works with node.js, commonjs, browser, AMD, electron, etc.

Updated February 14, 2018 by @doowb

type-check allows you to check the types of JavaScript values at runtime with a Haskell like type syntax.

Updated April 3, 2020 by @gkz