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Find IPv4 in Javascript

Javascript

Espressione Regolare

\b(?:\d{1,3}\.){3}\d{1,3}\b
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Spiegazione

This regex pattern matches IPv4 addresses. It looks for sequences of 1 to 3 digits followed by a period, repeated three times, and ending with another sequence of 1 to 3 digits. The \b ensures that it matches the whole IPv4 address and doesn't capture partial matches within longer strings.

Javascript

Esempio di Utilizzo

const regex = /\b(?:\d{1,3}\.){3}\d{1,3}\b/;
const ipAddress = '192.168.0.1';
console.log(ipAddress.match(regex));
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