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copied!<p>Thanks for the question! You can sort a list of Strings like this:</p> <pre class="lang-dart prettyprint-override"><code>main() { var fruits = ['bananas', 'apples', 'oranges']; fruits.sort(); print(fruits); } </code></pre> <p>The above code prints:</p> <pre class="lang-dart prettyprint-override"><code>apples, bananas, oranges </code></pre> <p>Notice that <code>sort()</code> does not return a value. It sorts the list without creating a new list. If you want to sort and print in the same line, you can use <em>method cascades</em>:</p> <pre class="lang-dart prettyprint-override"><code>print(fruits..sort()); </code></pre> <p>For more control, you can define your own comparison logic. Here is an example of sorting the fruits based on price.</p> <pre class="lang-dart prettyprint-override"><code>main() { var fruits = ['bananas', 'apples', 'oranges']; fruits.sort((a, b) => getPrice(a).compareTo(getPrice(b))); print(fruits); } </code></pre> <p>Let's see what's going on here.</p> <p>A List has a <a href="https://api.dartlang.org/apidocs/channels/be/dartdoc-viewer/dart:core.List#id_sort" rel="noreferrer">sort</a> method, which has one <em>optional</em> parameter: a <a href="http://api.dartlang.org/docs/continuous/dart_core/Comparator.html" rel="noreferrer">Comparator</a>. A Comparator is a <code>typedef</code> or function alias. In this case, it's an alias for a function that looks like:</p> <pre class="lang-dart prettyprint-override"><code>int Comparator(T a, T b) </code></pre> <p>From the docs:</p> <blockquote> <p>A Comparator function represents such a total ordering by returning a negative integer if a is smaller than b, zero if a is equal to b, and a positive integer if a is greater than b.</p> </blockquote>

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