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Created May 29, 2024 22:17
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Javascript - Check if string is a valid IPv4 address
Raw
gistfile1.txt
const checkIsValidIPv4 = (ip) => /^(?:(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.){3}(?:25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/.test(ip);
document.write(checkIsValidIPv4("192.168.1.1"));
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