Iterate Odd Numbers With a For Loop Help Understanding

1

Tell us what’s happening:
Hi,

I passed the challenge but I am looking for some explanation to understand the code better.

What really confused me was the odd numbers. My first attempt was to do an i+= 3 but that narrowed it too much. Then I tried 2 and it worked but I don’t know why. Please could someone explain to me what is going on and why it works.

Your code so far

// Example
var ourArray = [];

for (var i = 0; i < 10; i += 2) {
  ourArray.push(i);
}

// Setup
var myArray = [];

// Only change code below this line.

for (var i = 1; i <= 9; i += 2) {
   myArray.push(i);
}

Your browser information:

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Link to the challenge:
https://www.freecodecamp.org/challenges/iterate-odd-numbers-with-a-for-loop