url-exists-promise
Check if a url exists.
Check if a url exists.
Check if an app exists on macOS
Check if the binary exists on system
file helpers for reading, writing, deleting, checking types & existence, extracting metadata, walking, globbing, and more.
Function returns true or false based on whether or not a certain index can exist in a certain array length
Asynchronous file system library with chainable Q promises for Node.js
Check if file or directory exists
Provides fs,exists and fs.existsSync by wrapping fs.access and fs.accessSync
Checks for available binaries on unix machines
A library for managing javascript objects and offering common getter, setter, merge support.
Checks if the file exists.
check if a package exists on npm
A Babel plugin which emulates the `a?` existence check from CoffeeScript using the `??` syntax
Neater control exists component or component type for jsx
File/directory finder
Useful additions to inbuilt fs module.
Checks to see if a module is installed
A library that helps check for available nodes / providers. Useful for when you want to check a list of providers and see which ones are online.
A small library to check if a YouTube video exists.
Check if a url exists