ab64/lib/mini-app.js

The smallest and fastest Base64 implementation in JavaScript

import { atob, btoa } from './ponyfill.js';
import { slice } from './helpers.js';
const HEX = 16;
const CHUNK = 4;
export const decode = (val) => decodeURIComponent(slice(atob(val))
    .map(char => '%' + ('00' + char.codePointAt(0).toString(HEX)).slice(-1 * 2))
    .join(''));
export const encode = (val) => btoa(encodeURIComponent(val).replace(/%([\dA-F]{2})/g, (_, $1) => String.fromCodePoint(parseInt($1, HEX))));
export const decodeUrl = (val) => {
    let output = val.replace(/-/g, '+').replace(/_/g, '/');
    switch (output.length % CHUNK) {
        case 0: {
            break;
        }
        case 2: {
            output += '==';
            break;
        }
        case 3: {
            output += '=';
            break;
        }
    }
    return decode(output);
};
export const encodeUrl = (val) => encode(val).replace(/\+/g, '-').replace(/=/g, '').replace(/\//g, '_');
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