know website url in javascript code example

Example 1: get site url javascript

document.URL
> "http://example.com/page1.html"

document.location.href
> "http://example.com/page1.html"

document.location.pathname
> "/page1.html"

document.location.origin
> "http://example.com"

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');