How to know if .keyup() is a character key (jQuery)

Question

How to know if .keyup() is a character key (jQuery)

$(\"input\").keyup(function() {

if (key is a character) { //such as a b A b c 5 3 2 $ # ^ ! ^ * # ...etc         


        

Answer 1

I never liked the key code validation. My approach was to see if the input have text (any character), confirming that the user is entering text and no other characters

$('#input').on('keyup', function() {
    var words = $(this).val();
    // if input is empty, remove the word count data and return
    if(!words.length) {
        $(this).removeData('wcount');
        return true;
    }
    // if word count data equals the count of the input, return
    if(typeof $(this).data('wcount') !== "undefined" && ($(this).data('wcount') == words.length)){
        return true;
    }
    // update or initialize the word count data
    $(this).data('wcount', words.length);
    console.log('user tiped ' + words);
    // do you stuff...
});