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var abc = {a:1,b:2}
var eee = _.extend({},abc);
console.log(eee);

var bcd = {a:1,b:2};
var zzz = {b:2,a:1};
var ddd = {a:1,c:1};
var isEqual = _.isEqual(abc,ddd);
console.log(isEqual);
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