Edit in JSFiddle

var uri = "http://www.ezcode.kr/한글/space space.html#show";

// http://www.ezcode.kr/%ED%95%9C%EA%B8%80/space%20space.html#show
var encode = encodeURI(uri);
var decode = decodeURI(encode);
document.write(encode + "<br>");
document.write(decode + "<br>");

// http%3A%2F%2Fwww.ezcode.kr%2F%ED%95%9C%EA%B8%80%2Fspace%20space.html%23show
var encodeComponent = encodeURIComponent(uri);
var decodeComponent = decodeURIComponent(encodeComponent);
document.write(encodeComponent + "<br>");
document.write(decodeComponent + "<br>");