security_study_hx/node_modules/@zxing/text-encoding/es2015/encoding.js

import { TextDecoder } from './common/TextDecoder';
import { TextEncoder } from './common/TextEncoder';
// Polyfills browser
if (typeof window !== 'undefined') {
    const checkUndefined = key => !(key in window)
        || typeof window[key] === 'undefined'
        || window[key] === null;
    if (checkUndefined('TextDecoder'))
        window['TextDecoder'] = TextDecoder;
    if (checkUndefined('TextEncoder'))
        window['TextEncoder'] = TextEncoder;
}
export { TextDecoder, TextEncoder };
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