Suppress line feed in <textarea> on pressing enter [html, javascript]

Question

I want to suppress line feed in on pressing enter. Instead, I want to submit the form. I know how to submit the form on pressing enter in textarea, but I don't know to supress line feed on pressing enter. I need to hide it from user, I mean I want user not to see that enter made new line even for a moment.

Thank you in advance.

Answer 1

You can suppress the default key action in a keypress event handler:

textArea.onkeypress = function(evt) {
    evt = evt || window.event;
    var charCode = evt.keyCode || evt.which;
    if (charCode == 13) {
        evt.returnValue = false;
        if (evt.preventDefault) {
            evt.preventDefault();
        }

        // Do the form submit
        this.form.submit();
    }
};