practice problems 222

forked from scampbell2434's block: fresh block

forked from scampbell2434's block: practice problems 22

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<body>
  <h1>Please look in the code below for 4 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).
console.log ("gustion 1")
  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);}
    });
     console.log ("question 2")         
  // 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.includes ( "South")){
                     
                   
                     console.log(a1.name);
                   }
                   });
    
    console.log("question 3")
  // Problem 3: using iteration(loop) 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 (i){
      console.log(i)
        if (array3.includes(i)== false){
          console.log(array3.includes(i))
        }
    })       
 console.log("question 3.2")
  
  // 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 d3.ascending (a.name, b.name)
  })
  console.log(states)
 // function compare(a,b) {
   // states nameA = a.name.toUpperCase();
    //states nameB =
 // }
              
  /*
  states.sort(function(a,b) {return a.name - b.name})
  console.log(states)
    */        
  
  console.log("question 4")
  // 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

states.forEach(function(s){
    console.log(s.name, s.population, s.population % 2 == 0)
    if(s.population % 2 == 0){console.log(s)}
    
  })

</script>
</body>

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