34 lines
669 B
JavaScript
34 lines
669 B
JavaScript
/**
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* Get a random selection from an array.
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*
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* @param {Array} array
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* @param {Number} number
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* @returns `number` random elements from the array
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*/
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function choices(array, number) {
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const result = [];
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for (let i = 0; i < number; i++) {
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let c = choice(array);
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if (result.includes(c)) {
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i--;
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} else {
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result.push(c);
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}
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}
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return result;
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}
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/**
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* Get a random element from an array.
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*
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* @param {Array} array
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* @returns a random element from the array
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*/
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function choice(array) {
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return array[Math.floor(Math.random() * array.length)];
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}
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module.exports = {
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choices,
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choice
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} |