Guseyn Ismayylov Guseyn

ES Modules are terrible, actually

This post was adapted from an earlier Twitter thread.

It's incredible how many collective developer hours have been wasted on pushing through the turd that is ES Modules (often mistakenly called "ES6 Modules"). Causing a big ecosystem divide and massive tooling support issues, for... well, no reason, really. There are no actual advantages to it. At all.

It looks shiny and new and some libraries use it in their documentation without any explanation, so people assume that it's the new thing that must be used. And then I end up having to explain to them why, unlike CommonJS, it doesn't actually work everywhere yet, and may never do so. For example, you can't import ESM modules from a CommonJS file! (Update: I've released a module that works around this issue.)

And then there's Rollup, which apparently requires ESM to be u

Interview Questions

Node.js

Q1: What do you mean by Asynchronous API? ☆☆

Answer: All APIs of Node.js library are aynchronous that is non-blocking. It essentially means a Node.js based server never waits for a API to return data. Server moves to next API after calling it and a notification mechanism of Events of Node.js helps server to get response from the previous API call.

Source: tutorialspoint.com

The computation of the axis-aligned bounding box (AABB) in JavaScript

Polygon (rectangle, triangle, etc.)

Live demo https://jsfiddle.net/Kolosovsky/tdqv6pk2/

let points = [
	{ x: 125, y: 50 },
	{ x: 250, y: 65 },

From: https://www.jesgs.com/blog/2017/12/18/deploying-from-github-to-vps-using-travis-ci

Recently, I spent around 14 to 16 hours learning all of the necessary steps to getting an existing repo set up with Travis CI to run unit tests, and then once successful, connect to a remote server that isn't a PaaS (in this case, Linode) and then proceeds to use Git hooks to do post deployment things.

Starting with your local machine and you have your project already checked out from Github.

Setting Up

Assuming you have Ruby (at least 2.3.1) installed, run gem install travis. This installs the Travis CI command-line tools. We're going to use these tools to encrypt RSA keys that Travis will use to connect to your remote server.
This tutorial also assumes that you have a working repo and a Travis-CI account set up.

Hexadecimal color code for transparency

How to set transparency with hex value ?

For example, you want to set 40% alpha transparence to #000000 (black color), you need to add 66 like this #66000000.

Download This sample on Google Play Store

Don't use VPN services.

No, seriously, don't. You're probably reading this because you've asked what VPN service to use, and this is the answer.

Note: The content in this post does not apply to using VPN for their intended purpose; that is, as a virtual private (internal) network. It only applies to using it as a glorified proxy, which is what every third-party "VPN provider" does.

A Russian translation of this article can be found here, contributed by Timur Demin.
A Turkish translation can be found here, contributed by agyild.
There's also this article about VPN services, which is honestly better written (and has more cat pictures!) than my article.

	#!/usr/bin/env ruby
	#
	# JavaScript Soundfont Builder for MIDI.js
	# Author: 0xFE <[email protected]>
	# edited by Valentijn Nieman <[email protected]>
	#
	# Requires:
	#
	# FluidSynth
	# Lame

	#!/usr/bin/env ruby
	#
	# JavaScript Soundfont Builder for MIDI.js
	# Author: 0xFE <[email protected]>
	# edited by Valentijn Nieman <[email protected]>
	#
	# Requires:
	#
	# FluidSynth
	# Lame

	var express = require('express');
	var expressWs = require('express-ws');
	var expressWs = expressWs(express());
	var app = expressWs.app;

	app.use(express.static('public'));

	var aWss = expressWs.getWss('/');

	app.ws('/', function(ws, req) {


	# http://stackoverflow.com/questions/2587751/an-algorithm-to-find-bounding-box-of-closed-bezier-curves

	from __future__ import division
	import math

	def getBoundsOfCurve(x0, y0, x1, y1, x2, y2, x3, y3):
	tvalues = []
	bounds = [[], []]
	points = []