ascor
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一些常用的简单的js工具
39 lines (38 loc) • 1.2 kB
JavaScript
;
Object.defineProperty(exports, "__esModule", { value: true });
exports.getRanStr = void 0;
var index_1 = require("../is/index");
//随机的字符库，26个字母大小写加0-9
var $char = [];
for (var i = 0; i < 26; i++) {
$char.push(String.fromCodePoint(65 + i)); //大写字母
$char.push(String.fromCodePoint(97 + i)); //小写字母
if (i <= 9) {
$char.push(i); //0-9
}
}
/**
* 生成随机字符串
* @param num 随机数位数，默认36位 例： 12 ，'12'
* @param source 字符串资源，可选，如果传入字符串，则以此字符串作为资源，生成随机字符串
* @return string 返回字符串
*/
exports.getRanStr = function (num, source) {
if (num === void 0) { num = 36; }
if (!isNaN(num)) {
num = Number.parseInt(num);
}
if (!index_1.isNumber(num)) {
num = 36;
}
var str = "";
var strSource = $char;
if (index_1.isString(source) && !index_1.isEmpty(source)) {
strSource = source || $char;
}
//先随机36位字符串数组
for (var i = 0; i < num; i++) {
str += strSource[Math.floor(Math.random() * strSource.length)];
}
return str;
};