C-Rodg

// This guide encompasses the basics of the Dart programming language.
// It is heavily based off of the Dart guides listed below:

// Library Tour:
// https://dart.dev/guides/libraries/library-tour

// Language Tour:
// https://dart.dev/guides/language/language-tour

// To further explore any of the code, just head to the site:

C-Rodg

import UIKit

class ViewController: UIViewController {
  
  struct LayoutProperties {
    static let sideSpacing: CGFloat = 20
    static let cornerRadius: CGFloat = 8
    static let buttonHeight: CGFloat = 60
  }
  

C-Rodg

const shuffle = (arr) => {
  let currentIndex = arr.length;
  let tempValue, randomIndex;
  
  while (0 !== currentIndex) {
    randomIndex = Math.floor(Math.random() * currentIndex);
    currentIndex -= 1;
    tempValue = arr[currentIndex];
    arr[currentIndex] = arr[randomIndex];
    arr[randomIndex] = tempValue;

C-Rodg

class Tree {
 constructor(value = null, children = []) {
   this.value = value;
   this.children = children;
 }
  
  *printValues() {
    yield this.value;
    for(let child of this.children) {
      yield* child.printValues; 

C-Rodg

const convertToBytes = (str) => {
  return new TextEncoder('utf-8').encode(str);
};

const dataString = 'TT12345,1:49:52 PM,10/15/13';

// ODQsODQsNDksNTAsNTEsNTIsNTMsNDQsNDksNTgsNTIsNTcsNTgsNTMsNTAsMzIsODAsNzcsNDQsNDksNDgsNDcsNDksNTMsNDcsNDksNTE=
btoa(convertToBytes(dataString));

C-Rodg

const convertHexToRGB = (hex) => {
  hex = hex[0] === '#' ? hex.substr(1) : hex;
  const rgb = parseInt(hex, 16);
  return {
    Red: (rgb >> 16) & 0xFF,
    Green: (rgb >> 8) & 0xFF,
    Blue: rgb & 0xFF
  };
};

C-Rodg

const isEqual = (value, other) => {
  // Tests - same object type, same length, same items
  const type = Object.prototype.toString.call(value);
  
  if (type !== Object.prototype.toString.call(other)) {
    return false;
  }
  
  if (['[object Array]', '[object Object]'].indexOf(type) < 0) {
    return false;

C-Rodg

const ready = () => {
  
  // Example of checking if library is available
  if ('jQuery' in window) {
    return;
  }
  
  // Example of checking if document is loaded
  if (document.body) {
    // Do code here...

C-Rodg

const itemIds = [1,2,3,4,5,6];

// Using reduce
itemIds.reduce((promise, id) => {
  return promise.then(_ => api.deleteItem(id));
}, Promise.resolve());

// Using Async/Await
itemIds.forEach(async (item) => {
  await api.deleteItem(item);

C-Rodg

const get = (selector, context) => {
  // Select the items to manipulate
  const GetNodes = function() {
    this.nodes = context ? context.querySelectorAll(selector) : document.querySelectorAll(selector);
  };
  
  // Add new class to nodes
  GetNodes.prototype.addClass = function(className) {
    for (let i = 0, j = this.nodes.length; i < j; i++) {
     this.nodes[i].classList.add(className);