bradoyler

// figure out how this works and why it's important

// array
var arr =[2,3,5,5,1,99,22,44];

// sort ascending
  arr.sort(function(n1,n2){
      return n1 - n2;
  }); //output: [1, 2, 3, 5, 22, 44, 99]
  

bradoyler

// 1. declare a "named" function
 function myNamedFunction(){ return true; }
 // assertions
 console.log(typeof window.myNamedFunction === "function"); // true
 console.log(myNamedFunction.name === "myNamedFunction"); // true
 
 // 2. declare anonymous function
 var myAnonymousFunction = function(){ return true; };
 //assertions 
 console.log(typeof window.myAnonymousFunction === "function"); // true

bradoyler

//reverse characters in string
console.log('test string'.split('').reverse().join('')); // output: gnirts tset 

// count characters in a string
function Char_Counts(str1) {
 var uchars = {};
 str1.replace(/\S/g, function(l){
    uchars[l] = (isNaN(uchars[l]) ? 1 : uchars[l] + 1);
 });
  

bradoyler

// get factorial of a given number
// ie. 4 = (4 * 3 * 2 * 1) = 24

  function factorial(x) {
   if(x==0) {
      return 1;
   }
   return x * fact(x-1);
  }
  

bradoyler

// return 2nd highest and lowest numbers
function Second_Greatest_Lowest(arr_num)
{
  arr_num.sort(function(x,y)
           {
           return x-y;
           });
  var uniqa = [arr_num[0]];
  var result = [];
  

bradoyler

// filter words with a RegEx

var startsWithA = new RegExp(/^a/i); // filter by first letter A

var arr  = ['Apple','avocado','Banana','Cherry'];

var filtered = arr.filter(function(item){
    return startsWithA.test(item);
});

bradoyler

function LongestWord(sen) { 
  
  sen = sen.split(' '); // creates array 
  var nonAlpha = new RegExp('[^a-zA-Z\d\s:]'); 
  
  var filtered = sen.filter(function(item){
    return !nonAlpha.test(item);
  });
  
  var sorted = filtered.sort(function(n1,n2){

bradoyler

function getType(value)
{
var dtypes = [Function, RegExp, Number, String, Boolean, Object], x, len;
    
if (typeof value === "object" || typeof value === "function") {
  
     for (x = 0, len = dtypes.length; x < len; x++) 
     {
            if (value instanceof dtypes[x])
            {

bradoyler

function LetterChanges(str) { 

   var letters = str.split('');
   for (var i = 0; i < letters.length; i++) {
     var letter = letters[i];
     if(/[a-yA-Y]/.test(letter)){
       letters[i] = String.fromCharCode(letter.charCodeAt(letter.length-1)+1);
     }
   }
    

bradoyler

## Setup steps via terminal:
# 1. create a .rb file : $ touch askwiki.rb
# 2. open file: $ open askwiki.rb
# 3. copy/paste below in file and close/save
# 4. run it: $ ruby askwiki.rb

require 'open-uri'
require 'json'
 
language = 'en'