denysdovhan

// Simple ajax function to avoid using jQuery (°-°)
var ajax = function (url, callback) {
    var xhr = new XMLHttpRequest();
    xhr.open('GET', url, true);
    xhr.send();
    xhr.onreadystatechange = function (e) {
        if (e.target.status === 200 && e.target.readyState === 4) {
            callback(e.target.response);
        }
    };

denysdovhan

Sass/Less Comparison

In this document I am using Sass's SCSS syntax. You can choose to use the indented syntax in sass, if you prefer it, it has no functional differences from the SCSS syntax.

For Less, I'm using the JavaScript version because this is what they suggest on the website. The ruby version may be different.

Variables

denysdovhan

#!/bin/bash

# Might as well ask for password up-front, right?
sudo -v

# Keep-alive: update existing sudo time stamp if set, otherwise do nothing.
while true; do sudo -n true; sleep 60; kill -0 "$$" || exit; done 2>/dev/null &

# Example: do stuff over the next 30+ mins that requires sudo here or there.
function wait() {

denysdovhan

# Download and install XAMPP (Ubuntu 12.10)
# Depends on python-gtk2:i386 and python-glade2:i386 for the Control Panel
# If all else fails, XAMPP has step by step instructions at: http://www.apachefriends.org/en/xampp-linux.html

sudo add-apt-repository ppa:upubuntu-com/xampp;
sudo apt-get update;
sudo apt-get install xampp;

# Append the following if you're on a 64-bit system (~250MB)
sudo apt-get install ia32-libs

denysdovhan

sh_stats () {
	fc -l 1 | awk '{CMD[$2]++;count++;}END { for (a in CMD)print CMD[a] " " CMD[a]/count*100 "% " a;}' | grep -v "./" | column -c3 -s " " -t | sort -nr | nl | head -n20
}

denysdovhan

Locate the section for your github remote in the .git/config file. It looks like this:

[remote "origin"]
	fetch = +refs/heads/*:refs/remotes/origin/*
	url = git@github.com:joyent/node.git

Now add the line fetch = +refs/pull/*/head:refs/remotes/origin/pr/* to this section. Obviously, change the github url to match your project's URL. It ends up looking like this:

denysdovhan

#add script to .oh-my-zsh/lib/functions.zsh

function rm () {
  local path
  for path in "$@"; do
    # ignore any arguments
    if [[ "$path" = -* ]]; then :
    else
      local dst=${path##*/}
      # append the time if necessary

denysdovhan

@kangax's ES6 quiz, explained

@kangax created a new interesting quiz, this time devoted to ES6 (aka ES2015). I found this quiz very interesting and quite hard (made myself 3 mistakes on first pass).

Here we go with the explanations:

Question 1:

(function(x, f = () => x) {

denysdovhan

function nonCoercible(val) {
  if (val == null) {
    throw TypeError('nonCoercible shouldn\'t be called with null or undefined');
  }
  const res = Object(val);
  res[Symbol.toPrimitive] = () => {
    throw TypeError('Trying to coerce non-coercible object');
  }
  return res;
};

denysdovhan

# based on: https://community.home-assistant.io/t/tuya-radiator-valve-ts0601-calibration-from-external-sensor-via-zigbee2mqtt/337991
# alternative: https://community.home-assistant.io/t/sync-trv-with-external-tempature-sensor/298024

blueprint:
  name: Calibrate TRV temperature
  description: Temperature calibration for Zigbee valve TS0601, according to external temperature sensor
  domain: automation
  input:
    valve:
      name: Valve