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18 lines
401 B
18 lines
401 B
/**
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* Returns the number (integer) of DNS domain levels (number of dots) in the
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* hostname.
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*
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* Examples:
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*
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* ``` js
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* dnsDomainLevels("www")
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* // returns 0.
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* dnsDomainLevels("www.netscape.com")
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* // returns 2.
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* ```
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*
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* @param {String} host is the hostname from the URL.
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* @return {Number} number of domain levels
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*/
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export default function dnsDomainLevels(host: string): number;
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