17 lines
326 B
JavaScript
17 lines
326 B
JavaScript
'use strict';
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/**
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* Utility to extract the TLD from a hostname string
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*
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* @param {string} host
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* @return {String}
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*/
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module.exports = function extractTldFromHost(hostname) {
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var lastDotIndex = hostname.lastIndexOf('.');
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if (lastDotIndex === -1) {
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return null;
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}
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return hostname.substr(lastDotIndex + 1);
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};
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