node.js: readline.emitKeypressEvents(stream[, interface])

readline.emitKeypressEvents(stream[, interface])

This method causes the given Readable stream to begin emitting 'keypress' events.

Below table summarizes the arguments of the method.

Argument	Type	Description
stream	stream.Readable	Stream that emits key press vents
interface	readline.Interface	It specifies a readline.Interface instance for which autocompletion is disabled when copy-pasted input is detected.

HelloWorld.js

var readline = require('readline')

// If the stream is TTY, then it must  be in RAW mode
if (process.stdin.isTTY)
  process.stdin.setRawMode(true);

var rl = readline.createInterface({
 input: process.stdin,
 output: process.stdout
});

readline.emitKeypressEvents(process.stdin)
process.stdin.on('keypress', () => {
    process.stdout.write('.')
})

Whenever you type something, keypress event is emitted and print a ‘.’.

Note

If the stream is a TTY, then it must be in raw mode.

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