Use a for or while loop to iterate through the values in the temperatures array from the first item -- 100 -- to the las

You shouldn't feel stupid dude, its the computers that are stupid! When you're programming you're basically giving instructions to a stupid machine. And there's no such thing as a foolish question dude :) I've been hung up by things, and still get hung up. It doesn't seem like it ever stops..

Where do I start? I guess we can start with how Arrays work. Arrays are a type of variable that can contain multiple elements under a single name, and you can access these elements by referring to an index number using bracket notation -> [] like in your temperatures array. The index of an array will always start at 0.

The for loop however can start from whatever index value you want. The for loop can be broken into 3 statements via: for (statement 1, statement 2, statement 3). statement 1 is your variable declaration, this is where you declare the start of your for loop iteration(var i = 0). Statement 2 is where the for loop checks the logic or condition of the for loop, for instance "while i is less then the length of temperatures"(i < temperatures.length). Statement 3 is executed every time the code block of your for loop is executed(temperatures += 1).

Because the value of the variable i is a number, and you can access elements of your array using bracket notation and a number via: temperature[3]. You can put the temperatures array inside of your for loop code block, and use i as your parameter for bracket notation on temperatures via temperature[i]. each time the code block runs, temperatures will return the element that is equal to the variable i in its index.

I hope I've explained this well enough. Being able to explain concepts is just as important as understanding them lol.

further reading: https://www.w3schools.com/js/js_arrays.asp and https://www.w3schools.com/js/js_loop_for.asp

Solution:

const temperatures = [100, 90, 99, 80, 70, 65, 30, 10];
for ( var i = 0; i < temperatures.length; i ++ ) {
  console.log(temperatures[i]);
} 

Hey Mukhammadkhon. Your second question goes a little bit further into the weird parts of javascript. And has to do with hoisting and variable scope.

I believe the best practice in most situations would be to include the var keyword in your for loop:

for (var i = 0; i < 5; i++)

using var inside of the for loop will reduce its scope and make room for less errors "Example being if you have another variable named i outside of the for loop"

But if you for some reason need to use the variable outside of the for loop you would have to declare it outside such as:

var i;

for (i = 0; i < 5; i++)

Apologies if my first answer confused you, I copied off of the example code in question.

:) hope your doing well! And glad I can help!

for ( let i = 0; i < temperatures.length; i += 1 ) { console.log(temperatures[i]); }