Break for loop in JavaScript

Question

I want to break my for loop that I have 10 numbers in a line.

for(var i = 100; i <=300; i++){
    console.log(i);
}

Possible duplicate of [How to stop a JavaScript for loop?](https://stackoverflow.com/questions/9830650/how-to-stop-a-javascript-for-loop) — Mrk Fldig, Dec 25 '18 at 17:09
Hey richard flagged a duplicate to this question: https://stackoverflow.com/questions/9830650/how-to-stop-a-javascript-for-loop — Mrk Fldig, Dec 25 '18 at 17:10
My loop starts from 100, when it gets to 110, it breaks and skip a line. And continue reading when it reaches 120, skips a line. @Zeratul — Richard Obaseki, Dec 25 '18 at 17:28
*breaking a loop* and *linebreak* are two very different things. — Jonas Wilms, Dec 25 '18 at 17:30
Possible dumplicate https://stackoverflow.com/questions/1564818/how-to-break-nested-loops-in-javascript/1564838 — Srikrushna, Dec 25 '18 at 19:18

DeoxyribonucleicAcid · Answer 1 · 2018-12-26T21:21:12.240

1

I guess by "that I have 10 numbers in a line." you mean to break the line after 10 printed numbers. It seems not to be possible to log to the console without a linebreak, so you have to concatenate the output until 10 outputs are concatenated.

var line = '';              // initialize line variable
for(var i = 100; i <=300; i++) {
    line += i               // append current value to the line without printing it
    if ((i%10) === 0) {       // check, if the current iteration is dividable by 10
        console.log(line);    // output the collected output
        line = ''             // reset the line var
    }
}
if (line !== '') console.log(line);    // if the total count was not dividable
                                       // by 10, output the left over

edited Dec 26 '18 at 21:21

answered Dec 25 '18 at 17:27

DeoxyribonucleicAcid

155
2
10

Hi. Your answer didn’t really answer my question as the question is not straightforward. But I was wondering if you could comment this code. I’d like to investigate it. Thanks. – Richard Obaseki Dec 26 '18 at 20:42
Added some comments :) – DeoxyribonucleicAcid Dec 26 '18 at 21:25
Thanks for the comments. I’m practicing on something and I used this code to get a line of numbers where when I input a given integer, I get steps of that number counting downward like 1, next step 2, next step 3, and so on. I want to know if you can give a code where I can get the same steps of downward numbers, but backwards. I.e 1, next step 2 backward of 1 not forward. I don’t know if you understand. – Richard Obaseki Dec 28 '18 at 20:33

Artanis · Accepted Answer · 2018-12-25T18:11:14.113

0

In response to your statement, "My loop starts from 100, when it gets to 110, it breaks and skip a line. And continue reading when it reaches 120, skips a line:

        for(let i = 100; i <=300; i++){                         
            if(i % 10 == 0) {               
                continue;
            }           
            console.log(i);
        }

A break will exit the loop completely, a continue will skip to the next iteration. This skips every loop iteration that's divisible by 10.

edited Dec 25 '18 at 18:11

answered Dec 25 '18 at 17:38

Artanis

561
1
7
26

The second one was more helpful. – Richard Obaseki Dec 25 '18 at 17:52
please mark as the answer if it correctly answers your question – Artanis Dec 25 '18 at 17:57

score -1 · Answer 3 · answered Dec 25 '18 at 17:23

-1

you can use if condition inside your for loop lets say if you want to break the loop after 10 numbers printed just add this line in your for loop

if(i==10)
{
   break;
}

The break condition will bring you out of the for loop.

answered Dec 25 '18 at 17:23

Amir shah

317
2
7

Break for loop in JavaScript

3 Answers3