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JavaScript JavaScript Loops, Arrays and Objects Simplify Repetitive Tasks with Loops `do ... while` Loops

Tre Bu
Tre Bu
1,521 Points

Will this code work every time or will there be an error at some point in the code?

Dave's code looks a bit different than mine. So I want to make sure that this code will work every single time as well. I have tested it myself and it does work, but I want to make sure no error will happen in the code.


var randomNumber = getRandomNumber(10); var guess; var guessCount = 0;

function getRandomNumber( upper ) { var num = Math.floor(Math.random() * upper) + 1; return num; }

do {

guess = prompt('Please guess a number between 1 and 10');

guessCount +=1;

}while(parseInt(guess) !== randomNumber)

document.write('It took you ' + guessCount + ' tries to guess the correct number ' + randomNumber);

Johan Lindstrom
Johan Lindstrom
1,543 Points

great this code works way better than the teachers code!

1 Answer

Steven Parker
Steven Parker
216,768 Points

You optimized the code by eliminating the variable and separate test, and handling it directly in the loop conditional clause. And yes, this is a perfectly safe and stable modification. Good job! :+1: