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JavaScript JavaScript Loops, Arrays and Objects Simplify Repetitive Tasks with Loops Review while loops, do...while loops, and Loop Conditions

Posted by Sam Begdouri
Sam Begdouri
2,328 Points

This quiz question says that I am wrong. I want to know why.

var x = 0;

do {

  console.log('I love JavaScript');

  x += 1; 

} while ( x <= 10 )

In this question, I am asked to add something in the while condition so that "I love JavaScript is printed 10 times; some of it is filled out for me ...}while(x<= ...?... ).

I said 10 then used 11. But it says I am wrong. I want to know why. Can any one explain?

Thank you.

Sam

Chyno Deluxe
Chyno Deluxe
16,936 Points

//Fixed Code Presentation

4 Answers

Austin Lavier
Austin Lavier
3,949 Points

Possible conditions that would work would include:

while (x<10) or while(x<=9)

The reason is that the while condition will cause the loop to run to the top as long as the condition is met. Right now, as you have it, it will run until x is 11. A helpful way to see what is happening is to have this same loop run in the workspace to see how many times it is displaying "I love Javascript"

Chyno Deluxe
Chyno Deluxe
16,936 Points
Chyno Deluxe
Chyno Deluxe
16,936 Points

The answer to the question is 9.

When dealing with do...while loops. the tasks in the do will always run at least once. After the do finishes its initial run, the while will check if the condition is true, If true, the do scripts will continue to run until the condition is no longer true.

I hope this helps.

DJ Millward
DJ Millward
6,651 Points
DJ Millward
DJ Millward
6,651 Points

Or you could drop the equals sign . So that the argument is ' x < 10 ' will rin ten times also.

Chyno Deluxe
Chyno Deluxe
16,936 Points

Yes that will also log 10 times. because the number of times the loop runs is 9 more times and 9 is less than 10.

Sam Begdouri
Sam Begdouri
2,328 Points
Sam Begdouri
Sam Begdouri
2,328 Points

Thank you guys. This has helped and given me true understanding.