Example	Resulting value of x
var x = encodeURI("a1!%?");	a1!%25?
var x = encodeURIComponent("a1!%?");	a1!%25%3F
var x = decodeURI("a1!%25?");	a1!%?
var x = decodeURIComponent("a1!%25%3F");	a1!%?
(depreciated) var x = encape("a1!%?");	a1%21%25%3F
(depreciated) var x = unescape("a1%21%25%3F");	a1!%?