https://juhanakristianblog.netlify.app/tags/computer-science/ Recent content in Computer Science on dev notes Hugo en-us Tue, 06 Jul 2021 00:00:00 +0000 https://juhanakristianblog.netlify.app/posts/convert-an-array-to-a-map-in-javascript/ Tue, 06 Jul 2021 00:00:00 +0000 https://juhanakristianblog.netlify.app/posts/convert-an-array-to-a-map-in-javascript/ <p>Sometimes it&rsquo;s useful to convert a array to a map for convenience or performance reasons. But how can we achieve that so that the resulting code will be easy to understand?</p> <p>I&rsquo;m using the term <strong>map</strong> here to mean a data structure where a value can be accessed using an unique key. In JavaScript, objects can be used as maps but there also exists a special <strong>Map</strong> <a href="https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Map">type</a> which has some advantages and disandvantages when compared to using objects. We won&rsquo;t be covering <strong>Map</strong> in this article.</p>