On Wednesday, 21 January 2015 at 23:31:26 UTC, Nordlöw wrote:
This means that I need some kind of interface to extract all
the contents of each <p> paragraph that is preceeded by a <h2>
heading with a specific id (say "H2_A") or content (say "More
important"). How do I accomplish that?
You can do that with a CSS selector like:
document.querySelector("#H2_A + p");
or even document.querySelectorAll("h2 + p") to get every P
immediately following a h2.
My implementation works mostly the same as in javascript so you
can read more about css selectors anywhere on the net like
https://developer.mozilla.org/en-US/docs/Web/API/Document.querySelector
Further, is there a way to extract the "contents" only of an
Element instance, that is "Stuff" from "<p>Stuff</p>" for each
Element in the return of for example getElementsByTagName(`p`)?
Element.innerText returns all the plain text inside with all tags
stripped out (same as the function in IE)
Element.innerHTML returns all the content inside, including tags
(same as the function in all browsers)
Element.firstInnerText returns all the text up to the first tag,
but then stops there. (this is a custom extension)
You can call those in a regular foreach loop or with something
like std.algorithm.map to get the info from an array of elements.
