声明多个空变量

Question

I tried doing this: 我试过这样做：

var1, var2, var3 = {}

and only the last var was an object, is i posible to create multiple empty objects or arrays without doing 并且只有最后一个var是一个对象，我可以创建多个空对象或数组而不做

var all = {}, used = {}, unused = {};

? ？

Answer 1

What you wrote is similar to : 你写的内容类似于：

var1;
var2;
var3 = {};

What you need is : 你需要的是：

var1 = var2 = var3 = {};