nodejs child_process scope issue

Question

I am using child_process(fork) of nodejs then I send data to a particular file and receive data but not console that data after receiving of process execution

first.js

var cp = require('child_process');
var child = cp.fork('./s/abc.js');
child.send({data:'this come from parent process'});
var x ;

child.on('message', function(m) {
console.log(m); // output:- this come from child process
x = m;
});
console.log(m);
console.log(x);

abc.js (./s/abc.js)

process.send({data:'this come from child process'});
var x ;

process.on('message', function(m) {
console.log(m); // output:- this come from parent process
});

Answer 1

use function to console value after scope end

first.js

var cp = require('child_process');
var child = cp.fork('./s/abc.js');
child.send({data:'this come from parent process'});
var x ;

child.on('message', function(m) {
console.log(m); // output:- this come from child process
callTempFun(m);
});
function callTempFun(m){
console.log(m); // output:- this come from child process
}

abc.js (./s/abc.js)

process.send({data:'this come from child process'});
var x ;

process.on('message', function(m) {
console.log(m); // output:- this come from parent process
});