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function rmrf (fs, directory, callback) {
  fs.readdir(directory, function (err, list) {
    if (err) return callback(err);
    async.everySeries(list, function (item, callback) {
      var filename = path.join(directory, item);
      var stats = fs.stat(filename, function (err, stat) {
        if (err) return callback(err);
        if (filename === '.' || filename === '..') return callback();
        if (stat.isDirectory()) return rmrf(fs, filename, callback);
        fs.unlink(filename, callback);

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const createEmitter = () => {
  const handlersByEvent = new Map()

  const on = (event, handler) => {
    let handlers = handlersByEvent.get(event)
    if (!handlers) {
      handlers = []
      handlersByEvent.set(event, handlers)
    }
    handlers.push(handler)

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export const once = (func: Function): Function => {
  let called = false
  let cachedValue = undefined
  return (...args) => {
    if (!called) {
      cachedValue = func(...args)
      called = true
    }
    return cachedValue
  }

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import Ember from 'ember'

const { Component } = Ember

export default Component.extend({
  // properties
  options: undefined,
  selectedOption: undefined,
  onChange: undefined,
})

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import Ember from 'ember'

const { Component } = Ember

export default Component.extend({
  // props
  availableItems: undefined,
  selectedItem: undefined,
  onSelectItem: undefined,
})

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export const fetchAsBlob = url => fetch(url)
    .then(response => response.blob());

export const convertBlobToBase64 = blob => new Promise((resolve, reject) => {
    const reader = new FileReader;
    reader.onerror = reject;
    reader.onload = () => {
        resolve(reader.result);
    };
    reader.readAsDataURL(blob);

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<?php

namespace App\Providers;

use Illuminate\Support\Facades\Event;
use Illuminate\Foundation\Support\Providers\EventServiceProvider as ServiceProvider;


class EventServiceProvider extends ServiceProvider
{

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import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  actions: {
  	foo() {
      alert('red box')
      
    },
    bar(ev) {

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import Ember from 'ember';

export default Ember.Controller.extend({
  appName: 'Ember Twiddle',
  model: {
    sumText: 'sum text',
  },
  actions: {
    changed() {
      alert('onChange triggered')

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import { HTTPFetchNetworkInterface, printAST } from 'apollo-client';


/**
 * Serialize a object to a query string
 * @source https://stackoverflow.com/questions/1714786/query-string-encoding-of-a-javascript-object#comment47677757_18116302
 */
function serialize( obj ) {
    return `?` + Object.keys(obj).map(k => k + `=` + encodeURIComponent(obj[k])).join(`&`);
}