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@greemwahr
Created February 17, 2016 22:25
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# Process I/O files synchronously in node.js
var fs = require('fs')
var contents = fs.readFileSync(process.argv[2])
var lines = contents.toString().split('\n').length - 1
console.log(lines)
// note you can avoid the .toString() by passing 'utf8' as the
// second argument to readFileSync, then you'll get a String!
//
// fs.readFileSync(process.argv[2], 'utf8').split('\n').length - 1
# Process I/O files asynchronously in node.js
var fs = require('fs')
var file = process.argv[2]
fs.readFile(file, function (err, contents) {
// fs.readFile(file, 'utf8', callback) can also be used
var lines = contents.toString().split('\n').length - 1
console.log(lines)
})
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