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Home / Miscellaneous / Check if the given string is an absolute URL

Check if the given string is an absolute URL

Check if the given string is an absolute URL

Use RegExp.prototype.test() to test if the string is an absolute URL.

const isAbsoluteURL = str => /^[a-z][a-z0-9+.-]*:/.test(str);

// EXAMPLES
isAbsoluteURL('https://google.com'); // true
isAbsoluteURL('ftp://www.myserver.net'); // true
isAbsoluteURL('/foo/bar'); // false

Source

https://www.30secondsofcode.org/js/s/is-absolute-url

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