feat:生产初版页面
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/**
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* 生成指定范围内的随机整数 [min, max]
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*/
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export function randomInt(min: number, max: number): number {
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return Math.floor(Math.random() * (max - min + 1)) + min;
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}
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/**
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* 从数组中随机选取一个元素
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*/
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export function randomPick<T>(arr: T[]): T {
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return arr[Math.floor(Math.random() * arr.length)];
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}
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/**
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* 从数组中随机选取 n 个不重复元素
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*/
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export function randomPickN<T>(arr: T[], n: number): T[] {
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const shuffled = [...arr].sort(() => Math.random() - 0.5);
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return shuffled.slice(0, Math.min(n, arr.length));
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}
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/**
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* 打乱数组(Fisher-Yates)
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*/
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export function shuffle<T>(arr: T[]): T[] {
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const result = [...arr];
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for (let i = result.length - 1; i > 0; i--) {
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const j = Math.floor(Math.random() * (i + 1));
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[result[i], result[j]] = [result[j], result[i]];
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}
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return result;
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}
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