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6 lines
289 B
TypeScript
6 lines
289 B
TypeScript
const ipv4AddressRegexp = /^(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)\.(25[0-5]|2[0-4][0-9]|[01]?[0-9][0-9]?)$/;
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export default function isIpv4(ipAddress: string) {
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return ipv4AddressRegexp.test(ipAddress);
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}
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