archieve-projects/后事管理系统/api/tools/uuid.js

23 lines
654 B
JavaScript

// uuid生成函数
function getUuid(len, radix) {
var chars = '0123456789ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz'.split('')
let uuid = []
let i
radix = radix || chars.length
if (len) {
for (i = 0; i < len; i++) uuid[i] = chars[0 | Math.random() * radix]
} else {
let r
uuid[8] = uuid[13] = uuid[18] = uuid[23] = '-'
uuid[14] = '4'
for (i = 0; i < 36; i++) {
if (!uuid[i]) {
r = 0 | Math.random() * 16
uuid[i] = chars[(i == 19) ? (r & 0x3) | 0x8 : r]
}
}
}
return uuid.join('')
}
module.exports = getUuid