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    <p>How about:</p> <pre><code>articleWithMaxNumber = articles.slice(0).sort( function(x, y) { return y.number - x.number })[0] </code></pre> <p>and if you need an index:</p> <pre><code>index = articles.indexOf(articleWithMaxNumber) </code></pre> <p>And for those thinking sorting might be an overkill to get the max value:</p> <pre><code>articleWithMaxNumber = articles.reduce(function(max, x) { return x.number &gt; max.number ? x : max; }) </code></pre> <p>And here's a generic approach how to find a maximum of function applications using map-reduce:</p> <pre><code>function maxBy(array, fn) { return array.map(function(x) { return [x, fn(x)] }).reduce(function(max, x) { return x[1] &gt; max[1] ? x : max; })[0] } articleWithMaxNumber = maxBy(articles, function(x) { return x.number }) </code></pre> <p>Some people raised concerns about the <code>sort</code> method being "slow", compared to the iterative one. Here's a <a href="http://jsfiddle.net/HmHVy/" rel="nofollow">fiddle</a> that uses both methods to process an array with <strong>50000 items</strong>. The <code>sort</code> method is "slower" by about <strong>50 milliseconds</strong> on my machine. Depends on the application, but in most cases this is not something worth talking about.</p> <p><div class="snippet" data-lang="js" data-hide="true" data-console="false"> <div class="snippet-code snippet-currently-hidden"> <pre class="snippet-code-js lang-js prettyprint-override"><code>var articles = []; var len = 50000; while (len--) { var article = {}; article.text = "foobar"; article.color = "red"; article.number = Math.random(); articles.push(article); } d = performance.now(); max1 = articles.slice(0).sort( function(x, y) { return y.number - x.number })[0] time1 = performance.now() - d d = performance.now(); max2 = articles.reduce(function(max, x) { return x.number &gt; max.number ? x : max; }) time2 = performance.now() - d document.body.innerHTML = [time1, time2].join("&lt;br&gt;")</code></pre> </div> </div> </p>
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    1. POFind index of object in array with highest value in property
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    1. USgeorg
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    1. CONo. Sorting is not for getting maxima.
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    2. CO@Bergi: do you see any problems with this code?
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    3. COYes. It's unperformant. While a simple solution, you should at least indicate that it might not be the best.
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