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Node.js · Class

Writable

A Writable stream is a destination for data. Use write() to send chunks and end() to finish; custom streams process chunks in _write().

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Syntax

new stream.Writable([options]); writable.write(chunk[, encoding][, callback]); writable.end([chunk[, encoding]][, callback]);

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  • stream.Readable
  • stream.Duplex
  • stream.Transform
  • writable.write()
  • writable.end()
  • writable.cork()
  • writable.uncork()
  • Event: 'drain'

Source: Stream | Node.js v24.15.0 Documentation. Checked 2026-11-03.