Question

I am using a Speech-to-Text software to type in a field, since there is no screen or mouse or keyboard, I need to send this form after 3 seconds of no typing (actually talking) in this field but the field shouldn’t be empty

I am using PHP but I guess the solution is JavaScript or jQuery, I dont know much in these two so I’d appreciate if you could explain how to use it too.

Answer 1

$(function() {
    var time = 0;
    $("textarea").keyup(function() {
        time = 0;
    });

    var int = self.setInterval(function() {
        var s = $("textarea").val();
        if (time++ == 3) {
            if (s != "") alert(s);
            time = 0;
        }
    }, 1000);
});​

DEMO

UPDATE:

As @Tim Down has said,

The keypress event is designed for handling the a character typed by the user 
rather than detecting keyboard activity and the delete and backspace keys 
do not generate characters. Some browsers blur this line somewhat but 
the general principle is that the keyup and keydown events are there to detect 
any key being pressed and telling you about which key it is while keypress is 
for detecting an actual character being typed.

So that would be better if you use keyup instead of keypress, then your timer clear works for any key.