tyro-util/lib/uuid.js

前端常用工具库

/**
 * @desc   UUID生成器
 * @return {String}
 *
 * eg.
 * uuid() -> 'cfd27540-63b7-4a5a-81e7-e9f6725e86f0'
 */

const uuid = () => {
	var s = []
	var hexDigits = '0123456789abcdef'
	for (var i = 0; i < 36; i++) {
		s[i] = hexDigits.substr(Math.floor(Math.random() * 0x10), 1)
	}
	s[14] = '4'
	s[19] = hexDigits.substr((s[19] & 0x3) | 0x8, 1)
	s[8] = s[13] = s[18] = s[23] = '-'

	var uuid = s.join('')
	return uuid
}

module.exports = uuid