How can I make readline stop writing the read input to the output? That is,
when I do

lines = [];
var rl = readline.createInterface(process.stdin, process.stdout);
rl.resume()
rl.on("line", function (line) {
    lines.push(line);

read lines get written to the output as well. I would like to shut that
behaviour down. Any ideas?

How can I make readline stop writing the read input to the output? That is, when I do

lines = [];
var rl = readline.createInterface(process.stdin, process.stdout);
rl.resume()
rl.on("line", function (line) {
    lines.push(line);
});

read lines get written to the output as well. I would like to shut that behaviour down. Any ideas?

 

 

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Yeah, I can make it point to /dev/null, but isn't there a better way of
doing this?

The output stream is required with 'readline', so you have to give it
something. Depending on your use case, you can probably do what you
want by using 'read' instead:

https://github.com/isaacs/read

--
Martin Cooper