Checks existence of E-Mail DNS MX records.
Check for the existential value of a variable. Assign value by default.
A variable lives here
Check if a value exists at a nested property path
Check for the existential value of a variable/object. Assign one if the value doesn't exist.
A monadic wrapper for dealing with existence
CLI util for Proof of Existence
API Client for Proof of Existence
Check whether an email address exists.
Check if an SMTP server accepts emails to a given address.
A library written in Typescript which tries to check if an email address really exists
Tests whether a path exists on the filesystem.
run useful tests on your arrays or hashes of arrays or hashes
Check if a GitHub repo exists
CLI to Check if a GitHub repo exists
Checks existence of email addresses
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