jQuery 从列表中获取 img 源属性并推入数组
声明:本页面是StackOverFlow热门问题的中英对照翻译,遵循CC BY-SA 4.0协议,如果您需要使用它,必须同样遵循CC BY-SA许可,注明原文地址和作者信息,同时你必须将它归于原作者(不是我):StackOverFlow
原文地址: http://stackoverflow.com/questions/2355025/
Warning: these are provided under cc-by-sa 4.0 license. You are free to use/share it, But you must attribute it to the original authors (not me):
StackOverFlow
jQuery get img source attributes from list and push into array
提问by FFish
I have this thumbnail list and would like push the image paths (sources) into an array: tn_array
我有这个缩略图列表,并希望将图像路径(源)推送到一个数组中:tn_array
<ul id="thumbnails">
<li><img src="somepath/tn/004.jpg" alt="fourth caption" /></a></li>
<li><img src="somepath/tn/005.jpg" alt="fifth caption" /></a></li>
<li><img src="somepath/tn/006.jpg" alt="sixth caption" /></a></li>
</ul>
回答by cletus
You can create the array of src attributes more directly using map()
:
您可以使用map()
以下命令更直接地创建 src 属性数组:
var tn_array = $("#thumbnails img").map(function() {
return $(this).attr("src");
});
Edit:tn_array
is an object here rather than a strict Javascript array but it will act as an array. For example, this is legal code:
编辑:tn_array
这里是一个对象,而不是一个严格的 Javascript 数组,但它将充当一个数组。例如,这是合法代码:
for (int i=0; i<tn_array.length; i++) {
alert(tn_array[i]);
}
You can however call get()
, which will make it a strict array:
但是get()
,您可以调用,这将使它成为一个严格的数组:
var tn_array = $("#thumbnails img").map(function() {
return $(this).attr("src");
}).get();
How do you tell the difference? Call:
你怎么区分?称呼:
alert(obj.constructor.toString());
The first version will be:
第一个版本将是:
function Object() { [native code] }
The second:
第二:
function Array() { [native code] }
回答by Felix Kling
You can loop through ever img
element:
您可以遍历 everimg
元素:
var tn_array = Array();
$('#thumbnails img').each(function() {
tn_array.push($(this).attr('src'));
});