07 - Array Cardio Day 2/index-dashie.html

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="UTF-8">
  <title>Array Cardio 💪💪</title>
</head>
<body>
  <p><em>Psst: have a look at the JavaScript Console</em> 💁</p>
  <script>
    // ## Array Cardio Day 2

    const people = [
      { name: 'Wes', year: 1988 },
      { name: 'Kait', year: 1986 },
      { name: 'Irv', year: 1970 },
      { name: 'Lux', year: 2015 }
    ];

    const comments = [
      { text: 'Love this!', id: 523423 },
      { text: 'Super good', id: 823423 },
      { text: 'You are the best', id: 2039842 },
      { text: 'Ramen is my fav food ever', id: 123523 },
      { text: 'Nice Nice Nice!', id: 542328 }
    ];

    // Some and Every Checks
    // Array.prototype.some() // is at least one person 19 or older?
       const some19 = people.some((x)=>{
            let year = (new Date()).getFullYear();
            return (year - x.year)>=19;
        })
    // Array.prototype.every() // is everyone 19 or older?
        const areAllAdults = people.every((x)=>{
            let year = (new Date()).getFullYear();
            return (year - x.year)>=19;
        });

    // Array.prototype.find()
    // Find is like filter, but instead returns just the one you are looking for
    // find the comment with the ID of 823423
        const comment = comments.find((x)=> x.id == 823423)

    // Array.prototype.findIndex()
    // Find the comment with this ID
    // delete the comment with the ID of 823423
        const commentIndex = comments.findIndex((x)=> x.id == 823423);
        //comments.splice(commentIndex, 1);

        const newArray = [
            ...comments.slice(0,commentIndex),
            ...comments.slice(commentIndex+1)
        ]

  </script>
</body>
</html>