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chore: first commit

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Corentin Thomasset 2022-03-31 00:33:29 +02:00
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src/utils/random.ts Normal file
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const random = () => Math.random();
const randFromArray = (array: unknown[]) => array[Math.floor(random() * array.length)];
const randIntFromInterval = (min: number, max: number) => Math.floor(random() * (max - min) + min);
// Durstenfeld shuffle
const shuffleArrayMutate = <T>(array: T[]): T[] => {
for (let i = array.length - 1; i > 0; i--) {
const j = Math.floor(Math.random() * (i + 1));
[array[i], array[j]] = [array[j], array[i]];
}
return array;
};
const shuffleArray = <T>(array: T[]): T[] => shuffleArrayMutate([...array]);
const shuffleString = (str: string, delimiter = ''): string => shuffleArrayMutate(str.split(delimiter)).join(delimiter);
export { randFromArray, randIntFromInterval, random, shuffleArray, shuffleArrayMutate, shuffleString };