Question

location=new Array('display1','display2');
album1=new Array("images/1.png","images/2.png");
album2=new Array("images/a.png","images/b.png");
function slide(albumName,position,sequence)//albumName will contain album1 or album2,position will denote index in albumName elements, sequence will denote index in location array
{ 
   var path=albumName+"["+position+"]";
   document.location[sequence].src=path;
}




 <button onclick="slide('album1',0,1)>Slide</button> //Call in HTML

我想在funtion中获取动态值以使语句看起来像例如：document.display1.src =＆＃34; images / 1.png＆＃34 ;;但上面的代码不起作用。我可能做的任何更正？

Answer 1

要使用图像路径访问数组，我会将它们放在albums对象中。然后你可以说albums[albumName]来获得你想要的数组。从那里，您可以通过说album[position]来访问所需的元素。我并不完全理解你要对序列做什么，但我很确定这不是你的问题 - 你只需要知道如何获得正确的路径。

var albums = {
  album1: ["images/1.png", "images/2.png"],
  album2: ["images/a.png", "images/b.png"]
};

function slide(albumName, position, sequence) //albumName will contain album1 or album2,position will denote index in albumName elements, sequence will denote index in location array
{
  var album = albums[albumName]; 
  var path = album[position];
  console.log(path);
}

<button onclick="slide('album1',0,1)">Slide</button>

如何使用javascript分配从数组中获取的动态值

1 个答案: