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[Edit] jQuery maximum limit textarea
This is a simple HTML page which has a textarea input field and a span which keeps showing the number of characters left as you are typing.
<html> <header> <script src="jquery.js" type="text/javascript"></script> <script src="textcounter.js" type="text/javascript"></script> </header> <body> <textarea class="word_count" rows="5" cols="40"></textarea> <br/> <span class="counter"></span> </body> </html> $(document).ready(function(){
/**
* Character Counter for inputs and text areas showing characters left.
*/
$('.word_count').each(function(){
//maximum limit of characters allowed.
var maxlimit = 240;
// get current number of characters
var length = $(this).val().length;
if(length >= maxlimit) {
$(this).val($(this).val().substring(0, maxlimit));
length = maxlimit;
}
// update count on page load
$(this).parent().find('.counter').html( (maxlimit - length) + ' characters left');
// bind on key up event
$(this).keyup(function(){
// get new length of characters
var new_length = $(this).val().length;
if(new_length >= maxlimit) {
$(this).val($(this).val().substring(0, maxlimit));
//update the new length
new_length = maxlimit;
}
// update count
$(this).parent().find('.counter').html( (maxlimit - new_length) + ' characters left');
});
});
});
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