jQuery - How to select value by attribute name starts with

Question

I want to select attribute value by giving attribute name (only starts with) For instance if we have html tag

Answer 1

You could do it as a jQuery plugin. I'm not convinced its the right way to go about it but here's an example:

(function($) {
    $.fn.attrBegins = function(s) {
        var matched = "";
        this.each(function(index) {
            $.each(this.attributes, function( index, attr ) {
                if(attr.name.indexOf(s)===0){
                   matched =  attr.value
                }
            });
        });
        return matched;
    };
})(jQuery);

//example use
var val = $('div').attrBegins('data-');
alert(val);