The Definitive Guide] [javascript object comparison

var O = {X:. 1 }, P = {X:. 1 }; // two objects having the same attribute   
the console.log (O == P); // to false    two separate objects never equal
 var A = [], B = []; // two separate empty array
the console.log (A == B); // to false    two separate arrays never equal

Comparison object value is not: even though both contain the same objects and attributes of the same value, they are also not equal. Each element of the index is not exactly equal the two arrays are equal.

Reproduced in: https: //www.cnblogs.com/positive/p/3757163.html