reverse.js

这是《JavaScript学习源代码》一书的源代码

// create a new array of image URLs

var imgs = new Array("img1.gif","img2.gif","img3.gif");

// create a control variable

var rev = false;	

// when the slideshow displays the final image 
// ...reverse the order

rev = true;
if( rev == true )
{
  imgs.reverse();
}

// display the reversed element order

alert( imgs.join(" - ") );