I have an array
pics = ["url1", "url2", "url3"]
I want want to be able to set the src attribute of an image to an array element like so:
<img src = pics[0]>
Problem is that html does not recognize that I am want the string element pic[0] not literally "pic[0]", so it throws an error
Uncaught TypeError: Cannot set property 'src' of null
Thanks
You can't use JavaScript in arbitrary HTML attributes. You need to modify the DOM to add them afterwards.
var img = document.createElement('img');
img.alt = "Suitable alternative text";
img.src = pics[0];
document.getElementById('someElement').appendChild(img);
Make sure the script runs after someElement
exists so it doesn't error on the last line.
The technical post webpages of this site follow the CC BY-SA 4.0 protocol. If you need to reprint, please indicate the site URL or the original address.Any question please contact:yoyou2525@163.com.