Check for case insensitivity in jQuery [duplicate]

This question already has answers here: Closed 11 years ago.

Possible Duplicate:

javascript compare strings without being case sensitive.

I am having two fields. I need to check whether both the fields contain the same value. If the s开发者_StackOverflow社区ame value then a alert is raised.

I am using validation engine jQuery.

I have a written a function like:

function kkkk(field, rules,i,options){
    var password=field.val();
    var username = getValueUsingElementID('username');
    if(password==username){
        return options.allrules.NotEqual.alertText;
    }
}

Example:

sss2@ and sss2@ // shows error message
sss2@ and SSS2@ // no error message is shown

Please can anyone help. Both the values are user input.

---

Use the toLowerCase() function. That will convert your strings to all lower case characters, and the comparison will then return true whether or not there were differences in case originally:

if(password.toLowerCase() == username.toLowerCase()) {
   //Do stuff
}

---

Convert both in lover case by and than compare

if(password.toLowerCase() == username.toLowerCase())
{
    //sucess
}