Error: spawn npm ENOENT

I have an JS app. It works good on linux but in windows 10 I am getting an error.

events.js:161
  throw er; // Unhandled 'error' event
  ^

Error: spawn npm ENOENT
    at exports._errnoException (util.js:1028:11)
    at Process.ChildProcess._handle.onexit (internal/child_process.js:193:32)
    at onErrorNT (internal/child_process.js:359:16)
    at _combinedTickCallback (internal/process/next_tick.js:74:11)
    at process._tickCallback (internal/process/next_tick.js:98:9)
    at Module.runMain (module.js:607:11)
    at run (bootstrap_node.js:422:7)
    at startup (bootstrap_node.js:143:9)
    at bootstrap_node.js:537:3

and the code which is incorrect is this

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

const watching = [
  // {service: "babel-watch"},
  {service: "webpack-watch"},
  // {service: "sass-watch"},
  {service: "server-watch"}
];

watching.forEach(({service}) => {
  const child = spawn('npm', ['run', service]);
  child.stdout.on('data', d => console.log(d.toString()));
  child.stderr.on('data', d => console.log(d.toString()));
});

I found the reason of this error in github I guess the problem is spawn nodejs spawn Doc which have didn’t work correctly in windows. But I don’t know how to modify this snippet of code to make it work. Can someone help me ?

Answer

Just changed this line

const child = spawn('npm', ['run', service]);

to this line

  const child = spawn(/^win/.test(process.platform) ? 'npm.cmd' : 'npm', ['run',  service]);

Which is checking the operating system if ti’s windows it runs npm.cmd if it’s linux just npm