Js函数调用的另一种方式

Question

I have a function that fills an array...
I want to use it like this arrayname.fill("First Array");
But not like this arrayname = fill("First Array");
How can I accomplish this?

function fill(name)
{
    var array = [];
    for(var i = 0;i < 3;i++)
    {
        array[i] = prompt(name + "\nFill it");
    }
    return array;
}

Answer 1

Array.prototype.fill = function fill(name)
{
    var array = [];
    for(var i = 0;i < 3;i++)
    {
        array[i] = prompt(name + "\nFill it");
    }
    return array;
}

Answer 2

To do that, you must add your function to the prototype of the Array Object (but it's not recommended) :

Array.prototype.fill = function(name) {
  var array = [];
      for(var i = 0;i < 3;i++) {
        array[i] = prompt(name + "\nFill it");
      }
  return array;
}

Answer 3

Array.prototype.fill = function(name) {
      for(var i = 0;i < 3;i++) 
      {
        this[i] = prompt(name + "\nFill it");
      }
  return this;
}

I'm just changed array name to this... and removed line var array = [];
After Doing it all running how i need , thank you all!!!