caryfuk

const account = {
  email,
  password,
  ...(nickname && {nickname}),
}
// https://medium.freecodecamp.org/how-to-conditionally-build-an-object-in-javascript-with-es6-e2c49022c448

caryfuk

const list = new Array(100)
function set (i, item) {
  list[i % list.length] = item
}
// and something on performance: https://www.nearform.com/blog/wormholes-in-javascript/

caryfuk

/* https://thread.engineering/searching-and-sorting-text-with-diacritical-marks-in-javascript-45afef20e7f2 */
const animal = 'žluťoučký kůň'.normalize('NFD').replace(/[\u0300-\u036f]/g, '');

/* sorting with locale */
arr.sort((a, b) => a.localeCompare(b));

caryfuk

function whiteOrBlack(color) {
  const colorArr = color.length === 4 ? color.match(/[\da-fA-F]{1}/g) : color.match(/[\da-fA-F]{2}/g);
  return colorArr
          .map(s => s.length > 1 ? parseInt(s, 16) : parseInt(s, 16) * 16)
          .reduce((a, c) => a + c) > 381 ? '#000' : '#FFF';
}

caryfuk

touch ~/.android/repositories.cfg 
brew cask install caskroom/versions/java8
brew cask install android-sdk
brew cask install intel-haxm
brew install qt
export ANDROID_SDK_ROOT="/usr/local/share/android-sdk"
sdkmanager "platform-tools" "platforms;android-27" "extras;intel;Hardware_Accelerated_Execution_Manager" "build-tools;27.0.0" "system-images;android-27;google_apis;x86" "emulator"
avdmanager create avd -n test -k "system-images;android-27;google_apis;x86" --tag google_apis
/usr/local/share/android-sdk/tools/emulator -avd test

caryfuk

document.documentElement.webkitRequestFullScreen();

caryfuk

git log --pretty=format:'%Cred%h%Creset -%C(yellow)%d%Creset %s %Cgreen(%cr) %C(bold blue)<%an>%Creset' --abbrev-commit

-p (with commit changes)
--graph (displayed as graph)

via Filipe Kiss

caryfuk

const angle = (x, y) => {
  let result = Math.atan(y / x);
  if (x < 0) {
    result += Math.PI;
  } else if (y < 0) {
    result += 2 * Math.PI;
  }
  return result;
};

caryfuk

~"calc(100% - @{variable})";
// or
calc(100% ~"-" @variable);

caryfuk

### Terminal Syntax Highlighting

# Setup: "brew install highlight"

# Pipe Highlight to less
export LESSOPEN="| $(which highlight) %s --out-format xterm256 --line-numbers --quiet --force --style solarized-light"
export LESS=" -R"
alias less='less -m -N -g -i -J --line-numbers --underline-special'
alias more='less'