Alireza Ahmadi
49 lines
1.4 KiB
TypeScript
49 lines
1.4 KiB
TypeScript
const seq = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'.split('')
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const RandomUtil = {
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randomIntRange(min: number, max: number): number {
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return parseInt((Math.random() * (max - min) + min).toString(), 10)
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},
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randomInt(n: number) {
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return this.randomIntRange(0, n)
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},
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randomSeq(count: number): string {
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let str = ''
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for (let i = 0; i < count; ++i) {
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str += seq[this.randomInt(62)]
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}
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return str
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},
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randomLowerAndNum(count: number): string {
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let str = ''
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for (let i = 0; i < count; ++i) {
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str += seq[this.randomInt(36)]
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}
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return str
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},
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randomUUID(): string {
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let d = new Date().getTime()
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return 'xxxxxxxx-xxxx-4xxx-yxxx-xxxxxxxxxxxx'.replace(/[xy]/g, function (c) {
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let r = (d + Math.random() * 16) % 16 | 0
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d = Math.floor(d / 16)
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return (c === 'x' ? r : (r & 0x7 | 0x8)).toString(16)
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})
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},
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randomShadowsocksPassword(n: number): string {
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const array = new Uint8Array(n)
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window.crypto.getRandomValues(array)
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return btoa(String.fromCharCode(...array))
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},
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randomShortId(): string[] {
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let shortIds = new Array(24).fill('')
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for (var ii = 1; ii < 24; ii++) {
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for (var jj = 0; jj <= this.randomInt(7); jj++){
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let randomNum = this.randomInt(256)
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shortIds[ii] += ('0' + randomNum.toString(16)).slice(-2)
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}
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}
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return shortIds
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}
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}
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export default RandomUtil |