58 lines
1.4 KiB
TypeScript
58 lines
1.4 KiB
TypeScript
const hexList: string[] = []
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for (let i = 0; i <= 15; i++) {
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hexList[i] = i.toString(16)
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}
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/**
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* 生成随机数
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* @param min 最小值
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* @param max 最大值
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* @returns 生成的随机数
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*/
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export function randomNum(min: number, max: number) {
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switch (arguments.length) {
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case 1:
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return parseInt((Math.random() * min + 1).toString(), 10)
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break
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case 2:
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return parseInt((Math.random() * (max - min + 1) + min).toString(), 10)
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break
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default:
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return 0
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break
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}
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}
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/**
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* 生成全球唯一标识
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* @returns uuid
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*/
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export function uuid(): string {
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let uuid = ''
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for (let i = 1; i <= 36; i++) {
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if (i === 9 || i === 14 || i === 19 || i === 24) {
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uuid += '-'
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} else if (i === 15) {
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uuid += 4
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} else if (i === 20) {
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uuid += hexList[(Math.random() * 4) | 8]
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} else {
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uuid += hexList[(Math.random() * 16) | 0]
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}
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}
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return uuid
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}
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/**
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* 生成唯一标识
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* @param prefix 前缀
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* @returns 唯一标识
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*/
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export function shortUuid(prefix = ''): string {
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const time = Date.now()
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const random = Math.floor(Math.random() * 1000000000)
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if (!window.unique) window.unique = 0
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window.unique++
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return prefix + '_' + random + window.unique + String(time)
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}
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