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Checks if the given string is an IPv4 Address.
Small JS library that checks if the given string is an IPv4 Address
npm install isipv4import isipv4 from 'isipv4'
isipv4('172.16.254.1') // true
isipv4('172.316.254.1') // false
isipv4('.254.255.0') // false
isipv4('1.1.1.1a') // false