write file with "\n" with node.js

Question

Im working with a lot of datas which i turned into arrays , for simplicity lets assume i have array that looks like this

["dataone:dataone","datatwo:datatwo","datathree:datathree"]

im writting output to the file using fs.writeFile

but the output is always in the same row e.g dataone:dataone","datatwo:datatwo","datathree:datathree

i would like to output to be like with "\n" e.g

dataone:dataone
datatwo:datatwo
datathree:datathree

is it possible to make output in file look like this? im writting in into .txt file

Repeat question: stackoverflow.com/questions/10384340/new-line-in-node-js — NineToeNerd
– NineToeNerd, Commented Sep 20, 2015 at 20:48

chriskelly · Accepted Answer · 2015-09-20 20:53:30Z

1

Join the data with line breaks before writing to file

var os = require('os');
var brk = os.platform().substring(0,3).toLowerCasee() === 'win'
    ? '\r\n' : '\n';

var data = ["dataone:dataone","datatwo:datatwo","datathree:datathree"]
fs.writeFile(filename, data.join(brk), {encoding : 'utf8'},  function (e) {
   // etc  
});

edited Sep 20, 2015 at 20:53

answered Sep 20, 2015 at 20:46

chriskelly

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slomek · Accepted Answer · 2015-09-20 20:47:07Z

1

You can join your array with \n before writing it to the file:

var arr = ["dataone:dataone","datatwo:datatwo","datathree:datathree"]
var arr2 = arr.join('\n');

answered Sep 20, 2015 at 20:47

slomek

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