arr-includes
Return positive value if (any of the) passed value(s) exists in array, or optionally an index
Return positive value if (any of the) passed value(s) exists in array, or optionally an index
A deeper determination if an URL exists.
A small package for consistently asserting if a value exists
Synchronously check if a URL exists.
promises fs and takes care about fs.open
CLI checks if given file exists and is not empty
Finds the first existing file from a list of choices
Check whether an email address exists.
Ensures that the file path exists.
mongoose validation to ensure referenced object id exists
A tool to check if files are added in a git repository
A tool to get the git root path
fs.existsSync polyfill
Promise interface to Node FS
Check if one or more paths exist, promise-less
A library that extends native ES6 Map to bi-directional map.
Check that given branch/tag/release exist in github repo, using `user/repo#branch` pattern.
Small utility ot check if a native executable exists, and if not, print an error message
Checks if a YouTube video exists under the given ID. No API key is required.
Synchronous Node.JS function to simply create a file if it does not exist.