Node.Js Api Cheat Sheet

Spawn - passthru the in/out

var spawn = require('child_process').spawn;

var proc = spawn(bin, argv, { stdio: 'inherit' });

proc.on('error', function(err) {

  if (err.code == "ENOENT") { "does not exist" }

  if (err.code == "EACCES") { "not executable" }

});

proc.on('exit', function(code) { ... });

// also { stdio: ['pipe', 'pipe', process.stdout] }

// also { stdio: [process.stdin, process.stderr, process.stdout] }

proc.stdout.on('data', function (data) {

});

proc.stderr.on('data', function (data) {

});

Snippets

info = require('../package.json')

info.version

process.stdout.write(util.inspect(objekt, false, Infinity, true) + '\n');

[Globals] exec

var exec = require('child_process').exec,

var child = exec('cat *.js bad_file | wc -l',

  function (error, stdout, stderr) {

    console.log('stdout: ' + stdout);

    console.log('stderr: ' + stderr);

    if (error !== null) {

      console.log('exec error: ' + error);

    }

});

Globals

__filename

__dirname

Reference

• Node.Js Api Cheat Sheet - Cheat Sheet Maker