Introduction to the differences between js objects created_Basic knowledge

A : var obj1 = obj2 = new Object();

and

B : var obj1 = new Object(),
obj2 = new Object();

are two different assignment methods, resulting in different results. Please pay attention~

A will point the two objects to the same memory address, causing the contents of the two objects to be consistent

var t1 = t2 = new Object();
t1.name = 'hello';
t2.name = 'kao';
t1.name = null;
alert(t2.name); // 结果为 null

B’s will not