javascript - 是否可以在 Javascript 的变量名中添加两个点？

Question

我想在 javascript 中创建一个这样的变量

variable1.varible2.variable3 = "Hi Its working";
alert(variable1.varible2.variable3);

Answer 1

变量名中不能有 .。

You can call a variable pretty much anything you like, but there are limitations. Generally, you should stick to just using Latin characters (0-9, a-z, A-Z) and the underscore character.

如果您确实希望 variable1.varible2.variable3 返回值 "Hi Its working"。您可以使用对象。

let variable1 = {
  variable2:{
    variable3:"Soemthing"
  }
}
console.log(variable1.variable2.variable3)