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mei23/meid.ts

Created April 13, 2019 16:44
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meid.ts
const CHARS = '0123456789abcdef';
function getTime(time: number) {
if (time < 0) time = 0;
if (time === 0) {
return CHARS[0];
}
time += 0x800000000000;
return time.toString(16).padStart(12, CHARS[0]);
}
function getRandom() {
let str = '';
for (let i = 0; i < 12; i++) {
str += CHARS[Math.floor(Math.random() * CHARS.length)];
}
return str;
}
export function genObjectId(date: Date): string {
return getTime(date.getTime()) + getRandom();
}
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