尝试下面的代码

    (function () {

        $.getJSON('https://newsapi.org/v1/articles?source=techcrunch&sortBy=top&apiKey=045089075bc74354be01b34f6335d32b', function (json) {
            var html = "";
            $(json.articles).each(function (index, value) {
                $(".sidebar-nav").append("<li><a href='"+value.url+"'>" + value.title + "</a></li>");
            });
            

        });
    })();

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.9.1/jquery.min.js"></script>
<div id="sidebar-wrapper">
                    <ul class="sidebar-nav">
                    </ul>
 </div>