me-andre

const filter = (array, template) => array;

filter([{ a: 1, c: 2 }, { a: 3, b: 4 }, { a: 3, b: 2 }], { a: 1 }); // [{ a: 1, c: 2 }]

filter([{ a: 1, b: 2 }, { a: 3, b: 4 }, { a: 3, b: 2 }], { a: 3 }); // [{ a: 3, b: 4 }, { a: 3, b: 2 }]

filter([{ a: 1, c: 2 }, { a: 3, b: 4 }, { a: 3, b: 2 }], { a: 3, c: 2 }); // []

me-andre

const [a, setA] = useState(1);
if (value < 0.5) {
  const [b, setB] = useState(2);
}
const [c, setC] = useState(3);

console.log(c); // ?

// render 1: value < 0.5
// render 2: value > 0.5

me-andre

const add = () => {};
const divide = () => {};
const multiply = () => {};

const apply = () => {};

const result = apply(
  multiply(5),
  add(1),
  divide(2)

me-andre

const getRandomLight = () => Math.random() >= 0.5;

const generateTrain = (length) => {
  const head = {
    prev: null,
    next: null,
    light: getRandomLight()
  };
  let prev = head;
  for (let i = 0; i < length; i++) {

me-andre

const { debounce, throttle, times, delay } = require('lodash');

const superContext = {
  debounced: debounce(function () {
    console.log(this.i);
  }, 100),
  throttled: throttle(function () {
    console.log(this.i);
  }, 100)
};

me-andre

Javascript Code Style Thoughts

Multiline var declaration

I would avoid multiline var for several reasons:

1. You're visually grouping statements which may have unrelated logic except that you initialize variables. Example:

var {a, b} = getValues();
a = a || initializeA();
// good logical grouping

me-andre

<FluxCache store={store} propName="items" component={Component} id={this.props.routeParams.id} />

var FluxCache = React.createClass({
    componentWillMount() {
        this.props.store.addListener('change', this.onStoreChange);
    },
    componentWillUnmount() {
        this.props.store.removeListener('change', this.onStoreChange);
    },
    onStoreChange() {

me-andre

Quick uninstall JetBrains settings:

curl -sL https://gist.github.com/denji/9731967/raw/jetbrains-uninstall.sh | bash -s

me-andre

class String
  def constantize context = nil, &block
    const_names = self.split '::'
    if const_names.first.empty?
      const_names.shift
      const = ::Object
    else
      const = if context
        context.class
      elsif block

me-andre

require 'eventmachine'
require 'em-http-request'
require 'fiber'

class FiberPool

  class Fiber < ::Fiber
    
    def initialize pool, *args
      @resumed = false