如何從數組中的多個對象中准確提取 2 個鍵和值

Question

我有這個 json 文件

artist:[
{artist: "Henry", Year :"XYZ", album: "ABC", image: "image.jpg"}
{artist: "Lisa", Year :"1998", album: "All the time", image: "image.jpg"}
{artist: "David", Year :"2001", album: "Lets go", image: "image.jpg"}
{artist: "James", Year :"1997", album: "Memories", image: "image.jpg"}
{artist: "Julia", Year :"2002", album: "Technology", image: "image.jpg"}
{artist: "Bob", Year :"1995", album: "Chill 5", image: "image.jpg"}
{artist: "Frank", Year :"1996", album: "DeadRat", image: "image.jpg"}
]

我想提取藝術家，專輯和圖像並將其動態放在網站上。 我怎樣才能做到這一點？

Answer 1

你可以這樣做：

 const artist=[ {artist: "Henry", Year :"XYZ", album: "ABC", image: "image.jpg"}, {artist: "Lisa", Year :"1998", album: "All the time", image: "image.jpg"}, {artist: "David", Year :"2001", album: "Lets go", image: "image.jpg"}, {artist: "James", Year :"1997", album: "Memories", image: "image.jpg"}, {artist: "Julia", Year :"2002", album: "Technology", image: "image.jpg"}, {artist: "Bob", Year :"1995", album: "Chill 5", image: "image.jpg"}, {artist: "Frank", Year :"1996", album: "DeadRat", image: "image.jpg"} ] var arr = artist.map(x=>{return {artist:x.artist,album:x.album,image:x.image}}) console.log(arr)

})

為了在 React 應用程序上顯示您的數據，您可以按照此代碼

function App() {
  const artist = [
    { artist: "Henry", Year: "XYZ", album: "ABC", image: "image.jpg" },
    { artist: "Lisa", Year: "1998", album: "All the time", image: "image.jpg" },
    { artist: "David", Year: "2001", album: "Lets go", image: "image.jpg" },
    { artist: "James", Year: "1997", album: "Memories", image: "image.jpg" },
    { artist: "Julia", Year: "2002", album: "Technology", image: "image.jpg" },
    { artist: "Bob", Year: "1995", album: "Chill 5", image: "image.jpg" },
    { artist: "Frank", Year: "1996", album: "DeadRat", image: "image.jpg" }
  ];
  var arr = artist.map(x => {
    return { artist: x.artist, album: x.album, image: x.image };
  });
  return (
    <div className="App">
      {arr.map(x => {
        return (
          <div>
            {x.album} : {x.artist}
            <img alt="" src={x.src} />
          </div>
        );
      })}
    </div>
  );
}