const { setTimeout } = require('node:timers/promises');

const unicodeString = "Hello, 世界"; // "Hello, World" in Chinese
const encoded = Buffer.from(unicodeString, 'utf8');
async function writeChars() {
    for (let i = 0; i < encoded.length; i++) {
        process.stdout.write(encoded.subarray(i, i + 1));
        await setTimeout(0); // wait for a single async tick
    }
}
writeChars();

const child_process = require('child_process');

const decoder = new TextDecoder('utf-8');

let decodedOutput = '';
let byChunkOutput = [];
// Execute ./inner.js using Node.js and log the raw binary content of each chunk of stdout
const child = child_process.spawn('node', ['./inner.js'], {
    stdio: ['ignore', 'pipe', 'inherit']
});
child.stdout.on('data', (chunk) => {
    console.log('Received chunk:', chunk);
    byChunkOutput.push(chunk.toString());
    decodedOutput += decoder.decode(chunk, { stream: true });
});
child.on('close', (code) => {
    console.log(`Child process exited with code ${code}`);
    decodedOutput += decoder.decode(); // flush the decoder
    console.log('Decoded output:', decodedOutput);
    console.log('By-chunk output:', byChunkOutput.join(''));
});