after the reference type is assigned, changing one of them will affect the other, as follows:
var obj1 = { name: "hello" };
var obj2 = obj1;
obj2 = {};
console.log(obj1); // {name: "hello"}
console.log(obj2); // {}
after the reference type is assigned, changing one of them will affect the other, as follows:
var obj1 = { name: "hello" };
var obj2 = obj1;
obj2 = {};
console.log(obj1); // {name: "hello"}
console.log(obj2); // {}variable is re-assigned as a whole, which is equivalent to reopening a piece of memory. The memory pointer has changed. It has nothing to do with the original
, followed by a direct change in the direction of the variable, without manipulating the reference object.
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