Question

My textarea can count string/character when user enter input. Here is my jsfiddle.

My problem is I want set condition mean when string/character is 158 above, I want show message inside <div id="message">We will deduct 2 credit from your account</div> and same when string/character is 316 above the message will update and show<div id="message">We will deduct 3 credit from your account</div> and continue ..

Example:

158 *2

158 = We will deduct 2 credit from your account
316 = We will deduct 3 credit from your account
474 = We will deduct 4 credit from your account
632 = We will deduct 5 credit from your account
...

Answer 1

Try it

$('#myInput').keyup(function() {
    $('#charCount').text(this.value.length);

    var c = parseInt(this.value.length / 158);
    if(c > 0) 
        $('#message').text('We will deduct '+c+' credit from your account');
});​