Question

var inpt = $('#input-box').val();
if (inpt != '') {
    $('form').submit();
    alert('Voila!');           // (1)
} else {
alert('fill something man');   // (2)
}

I am using this code to automatically submit the form as soon as the page loads.
Here I am unable to use the jquery $(document).ready() function because I m in GreaseMonkey environment.
The form is automatically filled, I used (2) statement for exceptional cases.

I get no alerts! neither from (1) nor from (2).

UPDATE:

    <label for="answer">Answer:</label>
    <input type="text" name="answer" id="input-box" />
    <input type="submit" name="submit" id="submit" value="Submit" />
</form>

Answer 1

Try to put the alert before the submit.

var inpt = $('#input-box').val();
if (inpt != '') {
    alert('Voila!');           // (1)
    $('form').submit();
} else {
    alert('fill something man');   // (2)
    return false; // to stop submitting
}

If you want it to auto-submit after a user enter a value then you can do thsi:

$('#input-box').live('blur',function(){

    var inpt = $('#input-box').val();
    if (inpt != '') {
        alert('Voila!');           // (1)
        $('form').submit();
    } else {
        alert('fill something man');   // (2)
        return false; // to stop submitting
    }

});