How to do loop to write files from list in node.js?

Question

I'm trying to do loop to write files, I need to know how to load a file as cities.txt, this content inside looks like:

Los Angeles
San Francisco
St. Louis
New York
Philadelphia
Miami
Houston
Dallas
Kansas City
Memphis
...

This list includes new line, I'm looking a script to do loop, the output would be like this screenshot:

Also the space string needs to be replaced from " " to "-" to prevent error due to naming file rules.

You want to know how to load a series of txt files in Node.js and do something with their respective content. Did I get that right? — James Hibbard
– James Hibbard, Commented Dec 28, 2015 at 17:45
@JackZelig Yes but just one txt file which contains list of cities, that's all — Ivan
– Ivan, Commented Dec 28, 2015 at 17:47

Community · Accepted Answer · 2017-05-23 11:44:42Z

1

You can do it with readline, the core node module.

var fs = require('fs');

var lr = require('readline').createInterface({
  input: require('fs').createReadStream('cities.txt')
});

lr.on('line', function (line) {
  var fileName = line.replace(" ", "-").toLowerCase();
  fs.writeFileSync(fileName + ".json", '');
});

This SO thread is quite helpful: Read a file one line at a time in node.js?

edited May 23, 2017 at 11:44

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answered Dec 28, 2015 at 17:55

James Hibbard

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1 Comment

Ivan Over a year ago

It didn't write the files, it only shows list of cities in console.

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