js challenge day 7

array cardio

 

Code

  <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?
    // Array.prototype.every() // is everyone 19 or older?
    const someExample = people.some(person => ((new Date().getFullYear()) - person.year >= 19));
    console.log(someExample);

    const everyExample = people.every(person => ((new Date()).getFullYear()) = person.year >= 19);
    console.log(everyExample);
    // 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 findExample = comments.find(comment => comment.id === 823423);

    // Array.prototype.findIndex()
    // Find the comment with this ID
    // delete the comment with the ID of 823423

    const indexExample = comments.findIndex(comment => comment.id === 823423);
    conosole.log(indexExample);
  </script>

 

배운 점 & 느낀 점

이번 과제도 array 함수들을 써보는 거라 쉽게 할 수 있었습니다.

some, every, find, findIndex는 자주 안 쓰는 함수들이었는데 이번 기회에 사용해 봤습니다.