Count characters/sms using jQuery

Question

I count characters using NobleCount and the following code:

$(\'#message\').NobleCount(\'#messageInfo\',{
            max_chars: getMaxChars(),
            o         


        

Answer 1

Firstly, character counting is very easy. You just need to use the length property on a string. To count the number of SMS messages needed, you'll need to divide by 160 and round up (because 161 characters requires 2 messages). Your code should probably look something like this:

HTML:

    160 characters remaining
    1 message(s)

jQuery:

$(document).ready(function(){
    var $remaining = $('#remaining'),
        $messages = $remaining.next();

    $('#message').keyup(function(){
        var chars = this.value.length,
            messages = Math.ceil(chars / 160),
            remaining = messages * 160 - (chars % (messages * 160) || messages * 160);

        $remaining.text(remaining + ' characters remaining');
        $messages.text(messages + ' message(s)');
    });
});

See jsFiddle example.