EN
JavaScript - get random double between 2 numbers
10 points
In this article, we would like to show you how to generate a random number from the range in JavaScript.
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var generateNumber = function(min, max) {2
if (min > max) {3
throw new Error('Minimum value should be smaller than maximum value.');4
}5
var range = max - min;6
return min + range * Math.random();7
};8
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// Usage example: // Example output11
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console.log(generateNumber(-5, +5)); // -1.345422883914402213
console.log(generateNumber(+2, +7)); // 4.32974709516865814
console.log(generateNumber(0, 1000)); // 44.21996785621873Note:
generateNumbermethod returns a floating-point, pseudo-random number in the rangemin–max(inclusivemin, exclusivemax) with approximately uniform distribution over that range.