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How to create a random number between a range JavaScript
Our job is to create a function, say createRandom, that takes in two argument and returns a pseudorandom number between the range (max exclusive).
The code for the function will be −
Example
const min = 3;
const max = 9;
const createRandom = (min, max) => {
const diff = max - min;
const random = Math.random();
return Math.floor((random * diff) + min);
}
console.log(createRandom(min, max));Understanding the code −
- We take the difference of max and min
- We create a random number
- Then we multiply the diff and random to produce random number between 0 and diff
- Then we add min to it to produce the random number between min and max
Output
Output for this code in the console will be −
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Updated on: 19-Aug-2020
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