{"id":26,"date":"2026-05-23T03:55:49","date_gmt":"2026-05-23T03:55:49","guid":{"rendered":"https:\/\/jobswalkin.com\/blogs\/?p=26"},"modified":"2026-05-23T03:55:49","modified_gmt":"2026-05-23T03:55:49","slug":"how-to-count-occurrences-of-duplicate-elements-in-a-javascript-array","status":"publish","type":"post","link":"https:\/\/jobswalkin.com\/blogs\/javascript\/how-to-count-occurrences-of-duplicate-elements-in-a-javascript-array\/","title":{"rendered":"How to Count Occurrences of duplicate elements in a JavaScript array ?"},"content":{"rendered":"\n<pre class=\"wp-block-code\"><code>const fruits = &#91;\"apple\", \"banana\", \"apple\", \"orange\", \"banana\", \"apple\"];\n\nlet finalList = fruits.reduce((temp, item)=>{\n\t\n\tif(temp&#91;item]){\n\t\ttemp&#91;item]++;\n\t}else{\n\t\ttemp&#91;item]=1;\n\t}\n\t\n\treturn temp;\n}, {});\n\nconsole.log(finalList);\n\n\/\/ output : { apple: 3, banana: 2, orange: 1 }<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[2],"tags":[],"class_list":["post-26","post","type-post","status-publish","format-standard","hentry","category-javascript"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.6 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>How to Count Occurrences of duplicate elements in a JavaScript array ? 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