18 lines
574 B
TypeScript
18 lines
574 B
TypeScript
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import crypto from "crypto";
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export abstract class StringHelper {
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static random(len: number, charSet?: string): string {
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// charSet = charSet || "ABCDEFGHIJKLMNOPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789";
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// var randomString = "";
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// for (var i = 0; i < len; i++) {
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// var randomPoz = Math.floor(Math.random() * charSet.length);
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// randomString += charSet.substring(randomPoz, randomPoz + 1);
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// }
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// return randomString;
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return crypto
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.randomBytes(len)
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.toString("base64")
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.replace(/[^a-zA-Z0-9]/g, "");
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}
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}
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