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0. Prerequisites:
   • You need a running macOS system.
   • I assume you're familiar with using the terminal.
   • All the examples below refer to installing macOS High Sierra, you may need to adjust them to your needs if you want to install another macOS version.
1. Download macOS High Sierra from the AppStore.
2. The macOS installer will start after the download finiashes. We don't need it, so we can close it.
3. We need an empty image where we'll put the installer. Let's create one using the macOS DiskUtil CLI:

   hdiutil create -o /tmp/HighSierra -size 8G -layout SPUD -fs HFS+J -type SPARSE

loilo

ReactPHP Debouncer

A simple & classic debounce function. You provide a callable and specify a $wait timer and get a callable (closure) back.

The closure takes the same arguments as the provided callable, but will only be executed $wait seconds after being invoked. Invoking the closure again before $wait seconds have passed will refresh the execution delay to the full $wait seconds again.

This can be useful for example for detecting if a socket hasn't received data in, let's say, 10 seconds:

$loop = React\EventLoop\Factory::create();

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Structural Extraction of PHP Arrays

Extract structures from PHP arrays, kind of like an advanced pluck.

Signature

The provided xtract function takes a $source (usually an array) and a $target, which is the structure to transform the $source into:

mixed xtract( mixed $source, mixed $target )

Simple Examples

loilo

(An Approach to) Vue.js Template Variables

This has first been published as an article on dev.to.

The Problem

From time to time, I have the need to temporarily store the results of a method call in Vue templates. This is particularly common inside loops, where we cannot easily use computed properties.

Basically what we'd want to avoid is this:

<!-- List.vue -->

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Node Path Resolver

Implementation of the Node module resolution algorithm (aka require.resolve()) in PHP.

Depends on league/flysystem and illuminate/support.

Basic Usage

use League\Flysystem\Filesystem;
use League\Flysystem\Adapter\Local;

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import revHash from 'rev-hash'
import { readFileSync, statSync } from 'fs'
import { resolve } from 'path'

/**
 * Calculate the rev hash for a file
 *
 * @param {string} file The path to the file to hash
 * @returns {string}
 */

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Access PHP Variables in Nested Closures

This post was inspired by having to pass around ReactPHP's event loop all day.

😑 Are you tired of managing loads of use (...) constructs because you need some local variable inside a deeply nested closure?

🤯 Use the following tiny function abusing Closure::bind() to bend variable scope to your will!

function run_scoped(Closure $callback, $init = [])

loilo

Find Free Port with PHP

This is a quick way to find a random free port on a system using PHP:

$port = find_free_port();

Benchmarked locally, where finding a port always took around 0.15ms.

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Vue Responsive Container

A container component reacting to breakpoints on its own width or height, powered by ResizeObserver and scoped slots.

It is similar to things like vue-resize in that you can use it to observe a component's size. However the ResponsiveContainer will not emit any events, its whole point is to work as declaratively as possible, taking a predefined set of breakpoints you can access in your component.

Try the demo on CodeSandbox.

Basic Usage

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/**
 * Mock an object with a proxy, overriding methods and properties
 *
 * @param {object} object An object to mock
 * @param {object} implementations The properties/methods to virtually "merge" into the mocked object
 */
function moxy(object, implementations) {
  return new Proxy(object, {
    get(target, key, receiver) {
      if (key in implementations) {