A different approach to calling JavaScript functions


I have a method that populates an array.
I would like to utilize it in this manner: arrayname.fill("First Array");
And not like this: arrayname = fill("First Array");
What approach should I take?

function fillArray(name)
{
    let newArray = [];
    for(let i = 0; i < 3; i++)
    {
        newArray[i] = prompt(name + "\nPlease enter a value:");
    }
    return newArray;
}

Answer №1

CustomArray.prototype.populate = function populate(items)
{
    var customArray = [];
    for(var i = 0;i < 3;i++)
    {
        customArray[i] = prompt(items + "\nPlease enter a value to fill the array");
    }
    return customArray;
}

Answer №2

In order to achieve this, one must include their custom function in the prototype of the Array Object (although it is not advisable):

Array.prototype.fill = function(label) {
  var array = [];
      for(var i = 0;i < 3;i++) {
        array[i] = prompt(label + "\nEnter a value");
      }
  return array;
}

Answer №3

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

I've updated the array name and eliminated the line var array = [];
Everything is now running as expected, thanks to everyone involved!

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