javascript动态更改图像src的位置 - 没有JQuery [英] javascript dynamically change the location of image src - NO JQuery
问题描述
我以相同的方式设置了几个页面。每个页面包含大约10到15个图像,如果单击它们,图像将更改并变为不可点击。
我的代码是:
I have several pages set up in the same way. Each page has about 10 to 15 images and if you click them, the image changes and becomes unclickable. The code I have for this is:
function ToggleOnclick(elID)
{
var el = document.getElementById(elID);
var loc = document.getElementsByClassName("wrapper");
if (el.onclick)
{
// Disable the onclick
el._onclick = el.onclick;
el.onclick = null;
el.src = loc.id + "/" + el.name + "Clicked.png";
}
}
图片的html为:
....
<div class="content">
<div class="wrapper" id="som">
<div class="img0"><img src="som/doos.png" alt="doos" name="doos" id="doos" onclick="ToggleOnclick(this.name);" /></div>
<div class="img1"><img src="som/beer.png" alt="beer" name="beer" id="beer" onclick="ToggleOnclick(this.name);" /></div>
<div class="img2"><img src="som/bel.png" alt="bel" name="bel" id="bel" onclick="ToggleOnclick(this.name);" /></div>
....
因为我需要制作大约20个html文件,所以我有将图像的源位置添加为wrapper-div的id-tag的概念。
Because I need to make about 20 html-files, I had the notion to add the source location of the images as the id-tag of the wrapper-div.
我对javascript知之甚少,我很难找到什么我在找。可能也是因为我不是母语人士并且不知道我到底在想什么。
I have little knowledge of javascript and I have a hard time finding what I'm looking for. Possibly also due to not being a native speaker and not knowing what I'm looking for exactly.
请记住我的档案:
- 由于我们客户的规格,必须使用较旧的浏览器版本
- 无法使用JQuery修复(请不要在评论或答案中进入。我不能在这个项目中使用它。它不适合讨论。)
tldr;我需要一种基于wrapper-div的id-tag设置img src的方法
推荐答案
getElementsByClassName
给出一个集合而不是单个元素
getElementsByClassName
gives a collection not a single element
将元素传递给 ToggleOnclick
所以你不会必须在函数中获取它
pass the element to ToggleOnclick
so you won't have to fetch it in the function
function ToggleOnclick(el)
{
//var loc = document.getElementsByClassName("wrapper")[0];//assuming there is only one wrapper
if (el.onclick)
{
// Disable the onclick
el._onclick = el.onclick;
el.onclick = null;
//el.src = loc.id + "/" + el.name + "Clicked.png";
el.src = el.src.replace(".png", "Clicked.png");
}
}
<img src="som/doos.png" alt="doos" name="doos" id="doos" onclick="ToggleOnclick(this);" />
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