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								"use strict";
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								function newNoteId() {
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								    return randomString(12);
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								}
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								const ALPHA_NUMERIC = '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ';
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								function randomString(length, chars) {
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								    let result = '';
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								    for (let i = length; i > 0; --i) {
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								        result += ALPHA_NUMERIC[Math.floor(Math.random() * ALPHA_NUMERIC.length)];
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								    }
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								    return result;
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								}
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								function nowTimestamp() {
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								    return Math.floor(Date.now() / 1000);
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								}
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								function toBase64(plainText) {
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								    return Buffer.from(plainText).toString('base64');
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								}
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								function fromBase64(encodedText) {
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								    return Buffer.from(encodedText, 'base64');
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								}
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								module.exports = {
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								    randomString,
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								    nowTimestamp,
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								    newNoteId,
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								    toBase64,
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								    fromBase64
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								};
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