*** 현재 URL ***
http://localhost:8008/html/test.html?param=value
*** 자바스크립트 ***
console.log(location.href); // => http://localhost:8008/html/test.html?param=value
console.log(location.protocol); // => http:
console.log(location.host); // => localhost:8080
console.log(location.pathname); // => /html/test.html
console.log(location.search); // => ?param=value
