CODEWITHSUNDEEP
javascriptnode.js
Phirip
Phirip

Reputation: 93

Reading a file and separating data by blank lines in JavaScript

I have a text file that is simply just:

a
b
c

1
2
3

I'm using fs from Node and I've read data using it before fine as long as it only reads data and separates it by a newline character.

I have:

var fs = require('fs')
var input = fs.readFileSync("./test.txt").toString().split("\n\n")
console.log(input)

This returns

[ 'a\r\nb\r\nc\r\n\r\n1\r\n2\r\n3' ]  // [ 'abc 123']

and not what I'd like, which is

[ 'a\r\nb\r\nc', '1\r\n2\r\n3' ]  // [ 'abc', '123' ]

Could someone explain to me the problem here? Also if you wouldn't mind explaining what the \r means that would be amazing! Thank you so much!

Upvotes: 1

Views: 1017

Answers (2)

ubaidh khatlani
ubaidh khatlani

Reputation: 102

you can try this

var fs = require('fs')
var input = fs.readFileSync("./text.txt",'utf-8').replace(/\r\n/g, " ").trim().split('  ')
console.log(input) //output [ 'a b c', '1 2 3' ]

Upvotes: 1

Phirip
Phirip

Reputation: 93

So I just figured out a way to do it and I feel so :facepalm:

So since it was coming out as one whole string, I just furthered split it:

var fs = require('fs')
var input = fs.readFileSync("./test.txt").toString().split('\n\n')
var data = input[0].split("\r\n\r\n")
console.log(data[1])  // Correctly outputs ('1\n2\n3')

Also another solution that I just found out works as well!

var fs = require('fs')
var input = fs.readFileSync("./test.txt").toString().split('\r\n\r\n')
console.log(input[1])  // Also correctly outputs ('1\n2\n3')

Sorry about the post, but hope this helps someone else!

Upvotes: 0

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