iterating through Array

[joor]

Hi
I am new to all this so please excuse my ignorance. I am trying to work out how I can check if my Array contains my declared variable and if so, for the boolean to return true, however, I dont seem to be getting anywhere. I have tried the for loop and while loop as below; I would very much appreciate any help

var customerCodes = ['sh-12', 'gw-4', 'to-0'];
var customerPasswords = ['tony', 'darma', 'checks', 'lauren'];
 
var password;
password = window.prompt ('enter password' + '')
var customerIndex;
customerIndex = 0;
 
for (var index =0; index < customerPasswords.length; index = index + 1)
 
while (password != customerPasswords[customerIndex])
    {
 
        window.prompt ('enter correct password' + '')
 
    }
 
document.write ('lala')

[mrhoo]

some browsers implement an indexOf for array elements.
It is a handy method, you can add it if it isn't defined-

if(Array.prototype.indexOf== undefined){
    Array.prototype.indexOf= function(what){
        var L= this.length, i= 0;
        while(i< L){
            if(this[i]=== what) return i;
            ++i;
        }
        return -1;
    }
}

Then you can see if any item is in any array-
if(customerPasswords.indexOf(password) !=-1) // password found
or
if(customerPasswords.indexOf(password) ==-1)// password not in array

[joor]

thanks for your help,

I have taken a slight different route, however, I still seem to be stuck, what I am really trying to do is to create a while loop which will keep prompting me for the password if the password does not match the strings. also, if I had a parallel array, I would like to keep the index relevant to the password position. Any ideas?? Thanks again

<script language="JavaScript" type="text/JavaScript">
 
    //=================================
    //    SET UP AN ARRAY
    //=================================
    var validate = new Array(4);
 
    validate[0] = "pass1"
    validate[1] = "pass2"
    validate[2] = "pass3"
    validate[3] = "pass4"
    validate[4] = "pass5"
 
    //=======================================================
    //    FUNCTION CALLED WHEN BUTTON IS CLICKED
    //=======================================================
function getPassWord() {
 
    var getPW =document.mainForm.pw.value;    //get password from txt box
    var checkPW="";
    var i;
    var isOK = 0;                    //SET isOK TO ZERO
 
 
    //=====================================================
    //    LOOP ROUND ALL THE VALUES IN THE ARRAY AND 
    //    CHECK AGAINST ENTERED PASSWORD
    //=====================================================
    for (i=0; i < validate.length; i++) {
 
        checkPW =  validate[i];
 
        if (checkPW==getPW) {
            isOK = 1;
            break;
        }
    }
 
    //=======================================================================
    //    IF isOK EQUALS 1 THEN EVERYTHING OK - ELSE PASSWORD FAILURE
    //=======================================================================
    if (isOK==1) {
        alert("password OK = " + getPW);
    }
    else {
        alert("password failure = " + getPW);
    }
}
 
 
</script>

[mars95]

be careful!!!!

This question looks just like something in a current university assessment paper.............

[acoder]

be careful!!!!

This question looks just like something in a current university assessment paper.............

There's a pretty strict policy on homework/classwork assignments. See the guidelines. If this can be confirmed, the code can be dealt with accordingly.