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I use this piece of JS code to login to my bank and get the balance. This code snippet works, but I wanted to know if I could make this code smaller, faster or if I could anything differently to improve it.

casper.start(url, function() {

    console.log("Checking login status @ " + url);

    this.waitForSelector("form[name='SignonForm']", function() {
        this.fill('form#login', {
            'SignonAccountNumber': username,
            'SignonPassword':  password,
        }, true);
    });
});

casper.then(function() {

    if (/YES/.test(this.getCurrentUrl())) {
        this.thenOpen(this.getCurrentUrl(), function() {
            this.echo("Your balance: " + this.getHTML('#ctl00_wpm_ac_ac_rba_ctl00_dsv'));
        });
    } else {
        this.echo("Looks like the login failed.");
        this.exit()
    }

});
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