Could somebody help explain this to me: NEW [spoiler]

var myArray=
var i=0

I understand why everything in the function is happening, but why does my console read [0, 1, 2, 3, 4], as in the function it states to increment the variable while under 5. Why is there a 0 in that array?

Your code logs [0, 1, 2, 3, 4] because those are the values of i starting at 0 and continuing until i is no longer smaller than 5. What part of this is different from what you expect?

So the console logs [0] because it has to state the original value of i before it can increment the variable

// Create new array
var myArray = [];

// Initialize iterator to 0
var i = 0

// Loop i = 0 to i = 4
while (i < 5) {
  // Push i to end of array
  // Increase iterator

// Log contents of array
// Contents are [0, 1, 2, 3, 4, 5]
1 Like

This declares a variable name myArray with a value of an empty array [ ]

Declares the variable i is equals to 0

  • This is a while loop, and it will run again and again until the condition is right. In this case, the condition is if the variable i smaller the number 5.
  • Well i was declared with a value of 0, that means the code inside it will run. Then myArray.push(i) fills the variable myArray that have an empty array with the variable i which is currently 0.
  • Then after that i++ is just a shortcut programmers made because we are lazy that just means i = i + 1. This means the variable i is modified.
  • So after that the code goes back to the while and check is i smaller than 5. In this case, i has been changed into 1, but its still smaller than 5.
  • That means the code inside will run again until i is bigger than 5

Finally, this just logs it to your console the variable myArray