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20 lines
481 B
20 lines
481 B
import shuffle from './shuffle';
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/**
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* 获取n位随机字符串
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*
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* 示例：
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* (number: 3) => string: dz1
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*/
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export default function getRandomString(n = 20) {
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const srcStr = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
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let str = shuffle(srcStr);
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let len = str.length;
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if (typeof n != 'number' || n <= 0) {
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return '';
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} else if (n > len) {
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return str + getRandomString(n - len);
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} else {
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return str.substring(0, n);
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}
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}
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