how to print a string messages in NodeJs?

Question

Let's say there is a file demo.js. If I run it like this:

$ node demo.js | grep keyword

then I can get a string which is returned by demo.js and then use grep to handle it.

My question is how to return the string in demo.js?

You mean you want the output of the demo.js to be served as input to the same demo.js ? — zeekhuge
– zeekhuge, Commented Jul 20, 2018 at 9:13

zzzgoo · Accepted Answer · 2018-07-20 09:45:56Z

1

process.stdout.write

I found this is correct.

answered Jul 20, 2018 at 9:45

zzzgoo

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1 Comment

zeekhuge Over a year ago

And you found console.log() wrong ? In fact, console.log() internally uses process.stdout.write but with little bit of formatting. Also, stdout.write will not print a newline automatically, so .. you cant "really" use process.stdout.write to work with grep correctly (unless you add \n yourself, which will be a complete waste)

zeekhuge · Accepted Answer · 2018-07-20 09:18:40Z

To print a string in a NodeJs application simply use console.log()

Example :

console.log("This is the message");

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