Norbert de Langen ndelangen

🇳🇱

yes?

¯\_(ツ)_/¯

ndelangen / hasCursor.js

Created November 2, 2015 10:18

	(function ($) {
	var elements = {
	html: document.documentElement
	body: document.body
	};

	$(elements.body).one('touchstart', function () {
	$(elements.body).off('mouseenter.cursor-detection');
	});
	$(elements.body).one('mouseenter.cursor-detection', function () {

ndelangen / simple-fork-example.js

Created January 2, 2017 14:20

Fork can spawn a new NodeJS process. You give it a javascript file to execute.

	const fork = require('child_process').fork;
	const program = path.resolve('other.js');
	const child = fork(program);

ndelangen / silent-fork-process.js

Created January 2, 2017 14:22

A simple way to just create a silent child process is to pass a options object and set the `silent` property

	const fork = require('child_process').fork;
	const program = path.resolve('other.js');
	const child = fork(program, [], {
	silent: true
	});

ndelangen / add-ipc-communication-fork.js

Last active January 2, 2017 14:40

To communicate with the child process we need to enable.

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

	const program = path.resolve('program.js');
	const parameters = [];
	const options = {
	stdio: [ 'pipe', 'pipe', 'pipe', 'ipc' ]
	};

	const child = fork(program, parameters, options);

ndelangen / child.js

Last active December 5, 2022 18:38

NodeJS child_process communication (IPC) example

	if (process.send) {
	process.send("Hello");
	}

	process.on('message', message => {
	console.log('message from parent:', message);
	});

ndelangen / spawn-node-ipc.js

Created January 2, 2017 15:01

Spawn can be used to create a process from any command.

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

	const command = 'node';
	const parameters = [path.resolve('program.js')];

	const child = spawn(command, parameters, {
	stdio: [ 'pipe', 'pipe', 'pipe', 'ipc' ]
	});

ndelangen / process1.js

Created January 2, 2017 15:06

If you have 2 independent NodeJS processes running and want them to communicate, this can be done reliably using a npm package: node-ipc

	const ipc = require('node-ipc');

	ipc.config.id = 'a-unique-process-name1';
	ipc.config.retry = 1500;
	ipc.config.silent = true;
	ipc.serve(() => ipc.server.on('a-unique-message-name', message => {
	console.log(message);
	}));
	ipc.server.start();

ndelangen / cluster-example.js

Created January 2, 2017 15:55

The cluster module allows you to easily create child processes that all share server ports.

	const cluster = require('cluster');
	const http = require('http');
	const numCPUs = require('os').cpus().length;

	if (cluster.isMaster) {
	// Fork workers.
	for (var i = 0; i < numCPUs; i++) {
	cluster.fork();
	}

ndelangen / cluster-ipc.js

Created January 2, 2017 16:18

A NodeJS cluster communicating via ipc.

	const cluster = require('cluster');
	const http = require('http');

	if (cluster.isMaster) {
	// init cluster
	require('os').cpus().forEach(() => {
	cluster.fork();
	});

	// add eventlisteners

ndelangen / grid.js

Created January 26, 2017 22:31

A styled-components grid component

	import React from 'react';
	import styled from 'styled-components';

	const breakpoints = {
	xs: '(max-width: 400px)',
	sm: '(min-width: 401px) and (max-width: 520px)',
	md: '(min-width: 521px) and (max-width: 720px)',
	lg: '(min-width: 721px) and (max-width: 980px)',
	xl: '(min-width: 981px)',
	};