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Home / Math Related / Generate a random number in a given range with JavaScript

Generate a random number in a given range with JavaScript

Generate a random number in a given range

The following snippet returns a random number between min (inclusive) and max (exclusive).

// Returns a random number(float) between min (inclusive) and max (exclusive) 

const getRandomNumber = (min, max) => Math.random() * (max - min) + min;

getRandomNumber(2, 10)

 // Returns a random number(int) between min (inclusive) and max (inclusive)

const getRandomNumberInclusive =(min, max)=> {
    min = Math.ceil(min);
    max = Math.floor(max);
    return Math.floor(Math.random() * (max - min + 1)) + min;
}

getRandomNumberInclusive(2, 10);

Source

https://github.com/JSsnippets/JavaScript-snippets

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