哪种方法更快？
阵列加入:
var str_to_split = "a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z";
var myarray = str_to_split.split(",");
var output=myarray.join("");
String Concat:
var str_to_split = "a,b,c,d,e,f,g,h,i,j,k,l,m,n,o,p,q,r,s,t,u,v,w,x,y,z";
var myarray = str_to_split.split(",");
var output = "";
for (var i = 0, len = myarray.length; i<len; i++){
output += myarray[i];
}
我试图从javascript数组中显示六个图像.运行下面的代码我没有得到任何结果它似乎没有工作.我不知道我的错在哪里.
这是javascript代码:
var backgroundImage = new Array();
backgroundImage[0] = "images/colors-wallpaper.jpg";
backgroundImage[1] = "images/florida-birds.jpg";
backgroundImage[2] = "images/focus-on-life.jpg";
backgroundImage[3] = "images/set-into-life.jpg";
backgroundImage[4] = "images/dandelion.jpg";
backgroundImage[5] = "images/flowers.jpg";
backgroundImage[5] = "images/flowers.jpg";
function displayAllImages() {
// Here has to be some error!!! //
for (i=0;i<backgroundImage.length;i++) {
document.write("<li><img src='" + backgroundImage[i] + "' width="160" height="120"/><span>" + backgroundImage[i] + "</span></li>");
}
}
这是我的HTML代码:
<html>
<head>
<script type="text/javaScript" src="changebackground.js"></script>
</head>
<body>
<div id="container">
<div class="backgoundImage">
<ul>
<script>displayAllImages();</script>
</ul>
</div>
</div>
</body>
</html>