JavaScript - Unexpected identifier for loop

Question

I am trying to write a kind of brute force script in javascript! This is what I have so far:

var charset = ["a", "b", "c", "d", "e", "f", "g", "h", "i", "j,", "k", "l", "m", "n", "o", "p", "q", "r", "s", "t", "u", "v", "w", "x", "y", "z", "0", "1", "2", "3", "4", "5", "6", "7", "8", "9"];

function bruteForce() {

    var password = document.getElementById("enteredPassword").value;
    var crackedPassword = "";

    while (true) {
        if (crackedPassword != password) {
            for (int i; i < charset.lenght; i++) {
                crackedPassword += charset[i];
                document.getElementById("currentPassword").value = crackedPassword;
            }
        } else {

            document.getElementById("currentPassword").value = crackedPassword;
            alert("finished");
        }
    }
}

It gives me the following error: Uncaught SyntaxError: Unexpected identifier
the line causing the problem: for(int i = 0; i < charset.lenght; i++){

And: Uncaught ReferenceError: bruteForce is not defined
line: <input onClick = "bruteForce()" name="input" type="image" src="arrow.jpg" align="right" />

I thing it has to do with that crackedPassword += charset[i];
But what I saw here, confused me, because there has to be another cause!

This won't work by the way. The crackedPassword will contain abcdefghijklmnopqrstuvwxyzabcdefghijk..... — Maxime Peloquin
– Maxime Peloquin, Commented Oct 23, 2015 at 16:00
Of course...comming from java you know I'm sorry thank you :) — Niemand
– Niemand, Commented Oct 23, 2015 at 16:00

T J · Accepted Answer · 2015-10-23 16:01:38Z

2

for(int i = 0; i < charset.lenght; i++){

should be for(var i = 0; i < charset.length; i++){

Also inline event handlers like <input onClick = "bruteForce()" name="input" type="image" src="arrow.jpg" align="right" /> expect the handler to be in global scope.

So if the code you shared is enclosed in some other wrapper function, it probably won't work. Otherwise it's the first syntax error causing the second as well...

edited Oct 23, 2015 at 16:01

answered Oct 23, 2015 at 15:57

T J

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Comments

kjpc-tech · Accepted Answer · 2015-10-23 15:57:18Z

0

Length is spelt wrong in your for loop. It should be length not lenght.

answered Oct 23, 2015 at 15:57

kjpc-tech

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