reference material for attributes of <a> and <img> tags

I am troubleshooting this line of code: e is of type image(img) and b is of type link(a). It seems to be concatenating the local host to e.src and not doing just a direct copy of the string.

Where is reference material located on the开发者_Python百科 Mozilla Development Network that lists object properties, particularly the .src property of my image?

You need to assign a proper href attribute if you want to extract the hostname.

Instead of:

<a href="www.ay.com">link</a>

you should do:

<a href="http://www.ay.com">link</a>

or at least:

<a href="//www.ay.com">link</a>

Then you'll be able to extract the hostname. Otherwise the browser assumes www.ay.com is a local file or directory.

If for some reason you can't change the href, then you'll need to use getAttribute() to be able to retrieve it unmodified.

e.src=b.getAttribute('href');

If I'm not totally mistaken, that's a property of HTML links. If you have <a href="www.ay.com"> the link will point to http://example.com/www.ay.com. In this case you probably want e.src = b.href.

Probably your link is wrong. Use http://www.ay.com instead.

MDN Documentation refers to object properties as attributes, the relevant documentation for the attribute 'href' for the 'a' element is found here