xmlhttp.responseText validation within Javascript is not working

Question

My Below javascript is getting resopnse from servlet, when I try to validate, it is working. It is not able to validate the if statement if (xmlhttp.responseText=="1234").

What may be the reason

function handleServletPost() {
    if (xmlhttp.readyState == 4) {
        if (xmlhttp.status == 200) {
            if (xmlhttp.responseText == "1234") {
                alert("you are star");
            } else {
                alert("alert-->" + xmlhttp.responseText);
            }
        } else {
            alert("Ajax calling error");
        }
    }

This is trivial to solve yourself. Step through your code with a debugger and see what `xmlhttp.responseText` is. — Matt Ball, Aug 30 '13 at 15:58
As mentioned above, `console.log` or `alert` the value of `xmlhttp.responseText` and see if it really is `'1234'` — SimonR, Aug 30 '13 at 16:00
@Cruncher If `==` doesn't work, what makes you think `===` might? — Niet the Dark Absol, Aug 30 '13 at 16:03
@Kolink http://stackoverflow.com/questions/3586775/javascript-string-equality-whats-the-correct-way this does. — Cruncher, Aug 30 '13 at 16:05
@Cruncher Well your interpretation of that is wrong. `a === b` cannot be true if `a == b` is not true. — Niet the Dark Absol, Aug 30 '13 at 16:08

score 0 · Accepted Answer · answered Sep 20 '13 at 08:35

0

xmlhttp.responseText brings the space, so we need to trim the value.

Since trim does nto support in plain javascript, I have used jquery to achieve this.

answered Sep 20 '13 at 08:35

user2087798

37
4

xmlhttp.responseText validation within Javascript is not working

1 Answers1