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anhnt/gist:46d868b19fed70353116

Last active August 29, 2015 14:17
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gistfile1.txt
Câu 1. Bạn hãy cho biết đoạn code sau sẽ in ra gì ở Javascript console
(function($){
$(function(){
var a = 1;
b = 2;
window.c = 3;
});
})(jQuery);
console.log(a);
a = 4;
console.log(a);
console.log(b);
console.log(c);
Câu 2. Bạn hãy cho biết trong jQuery thì $('.classname') và $('#id') thì câu lệnh nào tối ưu hơn?
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