Unescape or Escape with JavasScript Solutions

Solution for JavaScript

function unescapeHTML(html) {
var htmlNode = document.createElement("DIV");
htmlNode.innerHTML = html;
if(htmlNode.innerText !== undefined)
return htmlNode.innerText; // IE
return htmlNode.textContent; // FF
}

Solution for JQuery

function unescapeHTML(html) {
return $("<div />").html(html).text();
}
function escapeHTML(html) {
return $("<div />").text(html).html();
}

JavaScript unescape() Function

var str = "Need tips? Visit W3Schools!";
var str_esc = escape(str);
document.write(str_esc + "<br>")
document.write(unescape(str_esc))

The output of the code above will be:
Need%20tips%3F%20Visit%20W3Schools%21
Need tips? Visit W3Schools!

The unescape() function was deprecated in JavaScript version 1.5. Use decodeURI()

JavaScript decodeURI() Function

var uri = "my test.asp?name=ståle&car=saab";
var enc = encodeURI(uri);
var dec = decodeURI(enc);
var res = enc + "<br>" + dec;

The result of res will be:
my%20test.asp?name=st%C3%A5le&car=saab      // Encoded URI
my test.asp?name=ståle&car=saab             // Decoded URI