将变量参数传递给函数--javascript

I defined a function that can take any number of arguments but none is required:

我定义了一个可以接受任意数量参数但不需要任何参数的函数:

function MyFunction() { //can take 0, 1, 1000, 10000, n arguments
//function code
}

Now i would like to write another function that call MyFunction with a variable number of arguments each time:

现在我想编写另一个函数,每次使用可变数量的参数调用MyFunction:

function Caller(n) {
var simple_var = "abc";
MyFunction() //how can i pass simple_var to MyFunction n times?
}

Thanks in advance :)

提前致谢 :)

2 个解决方案

#1

Function.apply can be used to pass an array of arguments to a function as if each element in the array had been passed as an individual argument:

Function.apply可用于将一个参数数组传递给一个函数,就好像数组中的每个元素都已作为单独的参数传递一样:

function Caller(n) {
   var simple_var = "abc";

   // create an array with "n" copies of the var
   var args = [];
   for (var i = 0; i < n; ++i) {
      args.push(simple_var);
   }

   // use Function.apply to send that array to "MyFunction"
   MyFunction.apply(this, args);
}

Worth to say, argument length is limited to 65536 on webkit.

值得一提的是,webkit上的参数长度限制为65536。

#2

-3

You can use eval (I know, eval is evil).

你可以使用eval(我知道,eval是邪恶的)。

In for loop construct string:

在for循环构造字符串中:

var myCall = "Myfunction(abc, abc, abc)";

and then pass it to eval

然后将其传递给eval

function Caller(n) {
var simple_var = "abc";
  eval(myCall);
}

#1