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I am wondering how to generate a random integer that gets rounded to nearest whole number, e.g. random number: 436, == 440, or 521, == 520. basically just rounding the random number to the nearest whole number. (JavaScript)

Math.floor(Math.random() * max) + min; //gets random number
//then I want to round the number here, maybe even in the same line as where the number is 
//being generated.
DarkBee
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Ben
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    https://stackoverflow.com/questions/11022488/javascript-using-round-to-the-nearest-10/11022517 – ptts Feb 09 '22 at 08:27
  • Does this answer your question? [Javascript using round to the nearest 10](https://stackoverflow.com/questions/11022488/javascript-using-round-to-the-nearest-10) – flololan Feb 09 '22 at 08:31
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    Just generate random integer in **smaller range** and multiply by 10 – MBo Feb 09 '22 at 08:45

3 Answers3

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I think this should do the job:

result = Math.round((Math.floor(Math.random() * max) + min) / 10) * 10;
Sven
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0

To round a number, you can use Math.floor(n / 10) * 10. Example:

function randomRoundNumber(min, max) {
  return Math.round((Math.floor(Math.random() * (max - min)) + min) / 10) * 10;
}
<button onclick="console.log(randomRoundNumber(parseInt(prompt('min?')),parseInt(prompt('max?'))))">Random number</button>
Yugoslav Empire
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0

This sould get the job done

 Math.round((Math.floor(Math.random() * max) + min) / 10) * 10
Shatsuki
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