如何使用JavaScript或CSS选择特定图像

Question

How to select an particular image in table or <div> using javascript to get an id of image selected.

I want to save an image which is selected to an database according to username I think the above javascript is used to select the image but it is not working :

 function imgWindow() { var s = window.getSelection() var r = document.createRange(); r.selectNode(document.images[a, b, c]); s.addRange(r); } 

 <div> <img src="images/p1.jpg" id="a" align="center" width="100" height="100" onclick="imgWindow()" /> <img src="images/p2.jpg" id="b" align="center" width="100" height="100" onclick="imgWindow()" /> <img src="images/p3.jpg" id="c" align="center" width="100" height="100" onclick="imgWindow()" /> <img src="images/p2.jpg" alt="b" align="center" width="100" height="100" onclick="imgWindow() "> </div> 

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Answer 1

You can pass parameter image itself to imgWindow function then you can get id of image by prop()

 function imgWindow(img) { //none juery version console.log(img.id) //jquery version console.log(($(img).prop("id"))) } 

 <script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script> <div> <img src="images/p1.jpg" id="a" align="center" width="100" height="100" onclick="imgWindow(this)" /> <img src="images/p2.jpg" id="b" align="center" width="100" height="100" onclick="imgWindow(this)" /> <img src="images/p3.jpg" id="c" align="center" width="100" height="100" onclick="imgWindow(this)" /> <img src="images/p2.jpg" alt="b" align="center" width="100" height="100" onclick="imgWindow(this) "> </div>