to check current url code example
Example 1: javascript get current url
var currentUrl = window.location.href;
Example 2: javascript url check
const isAbsoluteUrl = url => /^[a-z][a-z0-9+.-]*:/.test(url);
// Example
isAbsoluteUrl('https://1loc.dev'); // true
isAbsoluteUrl('https://1loc.dev/foo/bar'); // true
isAbsoluteUrl('1loc.dev'); // false
isAbsoluteUrl('//1loc.dev');