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title type language tags cover dateModified
Check if absolute URL
snippet
javascript
string
browser
regexp
coffee-phone-tray-2
2020-10-20

Checks 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);

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