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JavaScript JavaScript Foundations Functions Return Values

Jean Kaluza
Jean Kaluza
3,522 Points
Posted by Jean Kaluza
Jean Kaluza
3,522 Points

When did we talk about passing in an array to a function?

So I'm totally lost on this one, guys. I just learned what an array was and am barely grasping what a function is. Which particular video talks about passing in an array to a function? I must have missed it.

2 Answers

Erik Nemesis
Erik Nemesis
13,356 Points
Erik Nemesis
Erik Nemesis
13,356 Points

A function is a list of operations to execute in a row.

For instance, let's say you want to wash your clothes. That operation consists in three operations:

  • Take your clothes
  • Put them in the washing machine
  • Run the machine

In code, that would result in a function like such:

function wash(clothes) {
  var machine = new Machine(clothes);
  run(machine);
}

In this case, wash is a function (and so does "run"), clothes is an argument, and var machine ... is the body of the function. Also, because "clothes" is a set of one or many clothes, it is often represented as an Array, that you would have initialized before as such:

var clothes = ["shirt", "trousers", "pants"];

Hope that helped grasp the idea!

Dino Paškvan
PLUS
Dino Paškvan
Courses Plus Student 44,108 Points
Dino Paškvan
Dino Paškvan
Courses Plus Student 44,108 Points

Passing an array to a function is in no way different from passing some other type.

var myArray = [1, 2, 3];

function someFunc (someParam) {
// do something
}

someFunc(myArray);