//anytime you ever put two slashes at the beginning of a line, like i just did- this means that anything after the "//" won't be recognized as code. Like, programmers just use this to leave notes for each other inside their code. I'mma use it to explain each line one by one



//Preface: what this code technically does, is checking every number from 1-999, and if that number is divisible by either 3 or 5, it adds it to my number bank. Once it finishes checking all 999 numbers, it tells you the value of the number bank.



var numberBank=0;//this creates a new variable, names the variable "numberBank", and sets it equal to 0

for(var testNumber=1; testNumber<1000; testNumber++){//this line means "starting from 1, until 1000, I'll run this code below, and then go to the next number"

	if(testNumber%3==0 || testNumber%5==0){//if the number I'm testing is evenly divisible by 3, OR is evenly divisible by 5, then i will..."
		numberBank += testNumber;//...then i will add that number to my number bank
	}
}
numberBank //asks your computer for the value of numberBank

-open chrome, go to "about:blank". You should see a blank page

-press command+opt+J, this should open up the console on the right side of the page


-copy and paste this code into the console, press enter. Should give you a number/answer