JavaScript variable number of arguments to function

Is there a way to allow "unlimited" vars for a function in JavaScript?

Example:

load(var1, var2, var3, var4, var5, etc...)
load(var1)

---

当然，只需使用arguments对象。

function foo() {
  for (var i = 0; i < arguments.length; i++) {
    console.log(arguments[i]);
  }
}

---

Another option is to pass in your arguments in a context object.

function load(context)
{
    // do whatever with context.name, context.address, etc
}

and use it like this

load({name:'Ken',address:'secret',unused:true})

This has the advantage that you can add as many named arguments as you want, and the function can use them (or not) as it sees fit.

---

在最近的浏览器中，您可以使用以下语法接受可变数量的参数：

function my_log(...args) {
     //args is an Array
     console.log(args);
     //You can pass this array as parameters to another function
     console.log(...args);
}

链接地址: http://www.djcxy.com/p/65112.html

上一篇: NSOperationQueue和并发与非

下一篇: JavaScript可变参数数量的函数