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@laktek
Created December 29, 2010 06:38
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Checks whether the given string (or object) is blank
(function($){
$.isBlank = function(string){
return(!string || $.trim(string) === "");
};
})(jQuery);
$.isBlank(" ") //true
$.isBlank("") //true
$.isBlank("\n") //true
$.isBlank("a") //false
$.isBlank(null) //true
$.isBlank(undefined) //true
$.isBlank([]) //true
@unitario
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@yckart Hey, here form the future to tell you that for (var prop in obj) if (obj[prop]) return false will return false for additional properties on the prototype chain and this might not be the desired behavior; it would be wise to use for (var prop in obj) if (obj.hasOwnProperty(key) && obj[key]) return false. Also jQuery, is this thing still around?

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