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[
  {
    "code": "EUR",
    "symbol_native": "€",
    "name": "Euro"
  },
  {
    "code": "AED",
    "symbol_native": "د.إ",
    "name": "United Arab Emirates Dirham"

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package main

import utils.oldFor

fun main(args: Array<String>) {
    var n = 12
    oldFor({ 0 }, { it < n }, { it + 1 }) {
        println(it)
        n /= 2
    }

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package utils

fun oldFor(
    initialSetter: () -> Int,
    limitingCondition: (Int) -> Boolean,
    updater: (Int) -> Int,
    codeBlock: (Int) -> Unit) {
    var i = initialSetter()
    while (limitingCondition(i)) {
        codeBlock(i)

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package 

class FrequencyMap<K, Int>(
    private val b: MutableMap<K, kotlin.Int>,
    private val c: Map<K, kotlin.Int>)
    : MutableMap<K, kotlin.Int> by b, Map<K, kotlin.Int> by c {
    // Do something with b an c
}

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package main

import utils.FrequencyMap

fun main(args: Array<String>) {
    val mutableMapOne = mutableMapOf<Int, Int>()
    val freqMapOne = FrequencyMap<Int, Int>(mutableMapOne)
    freqMapOne.add(1, 3)
    freqMapOne.add(1, 2)
    freqMapOne.add(Pair(2, 2))

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package utils

class FrequencyMap<K, Int>(private val b: MutableMap<K, kotlin.Int>)
    : MutableMap<K, kotlin.Int> by b {
      
    fun add(key: K, freq: kotlin.Int = 1) {
        b.computeIfPresent(key) { _, b -> b + freq }
        b.putIfAbsent(key, freq)
    }

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FROM php:7.0-apache
RUN apt update && \
    apt install -y wget && \
    cd /tmp && \ 
    wget https://www.dotdeb.org/dotdeb.gpg && \
    apt-key add dotdeb.gpg && \
    rm dotdeb.gpg && \
    echo "deb http://packages.dotdeb.org jessie all" >> /etc/apt/sources.list && \
    apt update && \
    apt install -y php7.0-mysql php7.0-xml && \

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// no error handling
// code not checked to be working - just to illustrate how to do it

const crypto = require("crypto");
const mkdirp = require("mkdirp-promise");
const io = require("socket.io")();
const fs = require("fs");
const Docker = require("dockerode");
const byline = require("byline");
const StringDecoder = require("string_decoder").StringDecoder;

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import React, { PureComponent } from 'react';

export default class SecondChild extends PureComponent {  
  render() {
    console.log("Rendering!");
    return (
      <div>
        {this.props.text}
      </div>
    );

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import React, { Component } from 'react';
import FirstChild from './FirstChild';
import SecondChild from './SecondChild';

export default class Parent extends Component {
  constructor(props, context) {
    super(props, context);
    this.state = {
      text: Math.random()
    };