Cork/uncork example

tshemsedinov · tshemsedinov · commit 33f5c55e03cd · 2023-07-25T23:57:44.000+03:00
diff --git a/JavaScript/c-cork.js b/JavaScript/c-cork.js
@@ -0,0 +1,42 @@
+'use strict';
+
+const stream  = require('node:stream');
+
+const ENTER = 13;
+
+const createBufferedStream = () => {
+  const buffers = [];
+  const writable = new stream.Writable({
+    write(chunk, encoding, next) {
+      buffers.push(chunk);
+      next();
+    },
+    final(done) {
+      const result = Buffer.concat(buffers);
+      this.emit('result', result);
+      done();
+    }
+  });
+  return writable;
+};
+
+const lines = createBufferedStream();
+
+lines.on('result', (result) => {
+  console.log({ result });
+});
+
+process.stdin.setRawMode(true);
+process.stdin.on('data', (data) => {
+  const key = data[0];
+  if (key === ENTER) {
+    lines.write(data);
+    if (lines.writableCorked === 1) lines.uncork();
+    lines.end();
+    process.exit(0);
+  } else {
+    if (lines.writableCorked === 0) lines.cork();
+    lines.write(data);
+  }
+  process.stdout.write(data);
+});
