Created
February 6, 2013 19:00
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Char count
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* Character Count Plugin - jQuery plugin | |
* Dynamic character count for text areas and input fields | |
* written by Alen Grakalic | |
* http://cssglobe.com/post/7161/jquery-plugin-simplest-twitterlike-dynamic-character-count-for-textareas | |
* | |
* Copyright (c) 2009 Alen Grakalic (http://cssglobe.com) | |
* Dual licensed under the MIT (MIT-LICENSE.txt) | |
* and GPL (GPL-LICENSE.txt) licenses. | |
* | |
* Built for jQuery library | |
* http://jquery.com | |
* | |
*/ | |
(function($) { | |
$.fn.charCount = function(options){ | |
// default configuration properties | |
var defaults = { | |
allowed: 140, | |
warning: 25, | |
css: 'counter', | |
counterElement: 'span', | |
cssWarning: 'warning', | |
cssExceeded: 'exceeded', | |
counterText: '' | |
}; | |
var options = $.extend(defaults, options); | |
function calculate(obj){ | |
var count = $(obj).val().length; | |
var available = options.allowed - count; | |
if(available <= options.warning && available >= 0){ | |
$(obj).next().addClass(options.cssWarning); | |
} else { | |
$(obj).next().removeClass(options.cssWarning); | |
} | |
if(available < 0){ | |
$(obj).next().addClass(options.cssExceeded); | |
} else { | |
$(obj).next().removeClass(options.cssExceeded); | |
} | |
$(obj).next().html(options.counterText + available); | |
}; | |
this.each(function() { | |
$(this).after('<'+ options.counterElement +' class="' + options.css + '">'+ options.counterText +'</'+ options.counterElement +'>'); | |
calculate(this); | |
$(this).keyup(function(){calculate(this)}); | |
$(this).change(function(){calculate(this)}); | |
}); | |
}; | |
})(jQuery); |
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