practice problems 22

forked from scampbell2434's block: fresh block

forked from scampbell2434's block: practice problems 22

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<head>
  <meta charset="utf-8">
  <script src="https://d3js.org/d3.v4.min.js"></script>
  <style>
    body { margin:0;position:fixed;top:0;right:0;bottom:0;left:0; }
  </style>
</head>

<body>
  <h1>Please look in the code below for CORRECTION(5) JavaScript practice problems.</h1>
  <p>(These problems don't include any SVG manipulation, so you will need to open the developer console in order to see the output of your code)</p>
  <script>
  // Problem 1: search array1 for those states whose location is "East"
  // using console.log(), print just the state name(s).

array1 = [
    				{name: "Arizona",  location: "Southwest"},
           	{name: "Virginia", location: "East"},
            {name: "Florida",  location: "Southeast"}
           ];
    array1.forEach(function(a1) {
        if (a1.location == 'East') {
          console.log(a1.name);
        }
      })
  
  // Problem 2: search array1 (above) for those states whose location contains the substring "South"
  // using console.log(), print just the state name(s) for these states.
    
    
    array1.forEach(function(a1)
                   {if (a1.location.substring("South"))
                     console.log(a1.name)})
    
    
  // Problem 3: using iteration and console.log(), print those items that are in
  // array2 but NOT in array3

array2 = ['a','b','c', 65, 'd'];
  array3 = ['a','c','e','f','g', 87];
    
    array2.forEach (function (a3){
      array3.forEach(function (a4){
        if (a3 !== a4){
            console.log (a3)
        }
      })
    })

// Problem 3: 'states' is an array of objects. Sort the array in ascending order
  // by state name
  
  states = [{name: "Alaska", id: "AK", population: 741894},
            {name: "Virginia", id: "VA", population: 8411808},
    				{name: "Arizona", id: "AZ", population: 6931071},
            {name: "Florida", id: "FL", population: 20984400}]
    
              
  
  states.sort(function(a,b) {return a.name - b.name})
  console.log(states)
            
  // Problem 4: write code that determines which state(s) have a population value that is an even number. Print out the state(s) to the console

</script>
</body>

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