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9 lines
331 B
TypeScript
9 lines
331 B
TypeScript
const hostnameLengthRegex = /^.{0,48}$/;
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const hostnamePatternRegex = /^(([a-zA-Z0-9]|[a-zA-Z0-9][a-zA-Z0-9-]*[a-zA-Z0-9])\.)*([A-Za-z0-9]|[A-Za-z0-9][A-Za-z0-9-]*[A-Za-z0-9])$/;
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export default function isHostname(hostname: string) {
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return (
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hostnameLengthRegex.test(hostname) && hostnamePatternRegex.test(hostname)
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);
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}
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