Detect comma press in input field

by joplomacedo

HTML

<input class="detective" type="text" />

CSS

.detective {
    
}

.detected {
    background: red;
}

JavaScript

$('.detective').on('keyup', function(e) {
    var code = (e.keyCode ? e.keyCode : e.which);
    
    if (code === 188) {
        $('<div />', {
            class: 'detected',
            text: $(this).val()
        }).appendTo('body');
    }
});