Gitbook chapter bibliography not in alphabetical order

Question

I'm using bookdown to create an HTML gitbook from R markdown files (i.e. .Rmd), with the default option of split_bib = TRUE resulting in a bibliography at the end of each chapter, as well as a complete bibliography at the end of the book.

The end-of-book bibliography is in alphabetical order, but the end-of-chapter bibliographies are not. (Here's an example).

How can I arrange all reference lists alphabetically?

Answer 1

$(function(){
    var elems = $('#refs').children('div').remove();
    elems.sort(function (a, b) {
        return b.id > a.id ? -1 : 1;
    });
    $('#refs').append(elems);
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>
<div id="refs" class="references">
  <div id="ref-Goloboff2016">
    <p>Goloboff, P. A., and S. A. Catalano. 2016: TNT version 1.5, including a full implementation of phylogenetic morphometrics. Cladistics 32:221–238.</p>
  </div>
  <div id="ref-Goloboff1999">
    <p>Goloboff, P. 1999: Analyzing large data sets in reasonable times: solutions for composite optima. Cladistics 15:415–428.</p>
  </div>
  <div id="ref-Nixon1999">
    <p>Nixon, K. C. 1999: The Parsimony Ratchet, a new method for rapid parsimony analysis. Cladistics 15:407–414.</p>
  </div>
  <div id="ref-Goloboff1997">
    <p>Goloboff, P. A. 1997: Self-weighted optimization: tree searches and character state reconstructions under implied transformation costs. Cladistics 13:225–245.</p>
  </div>
</div>

My solution sorts by the id of the divs within #refs. You didn't specify whether you wanted to sort by surname ascending and year descending, which would necessitate something more complicated.