{"id":34309,"date":"2023-03-04T09:28:09","date_gmt":"2023-03-04T03:58:09","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-arrays-elements-in-javascript-duplicate\/"},"modified":"2023-03-04T09:28:09","modified_gmt":"2023-03-04T03:58:09","slug":"solved-arrays-elements-in-javascript-duplicate","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-arrays-elements-in-javascript-duplicate\/","title":{"rendered":"[Solved] Array&#8217;s elements in JavaScript [duplicate]"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-75211697\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"75211697\" data-parentid=\"75211595\" data-score=\"-1\" data-position-on-page=\"1\" data-highest-scored=\"1\" data-question-has-accepted-highest-score=\"1\" itemprop=\"acceptedAnswer\" itemscope itemtype=\"https:\/\/schema.org\/Answer\">\n<div class=\"post-layout\">\n<div class=\"votecell post-layout--left\"><\/div>\n<div class=\"answercell post-layout--right\">\n<div class=\"s-prose js-post-body\" itemprop=\"text\">\n<p>This is an approach using <code>Array.reduce()<\/code><\/p>\n<p><a rel=\"nofollow noopener\" target=\"_blank\" href=\"https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/JavaScript\/Reference\/Global_Objects\/Array\/reduce\">https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/JavaScript\/Reference\/Global_Objects\/Array\/reduce<\/a><\/p>\n<ul>\n<li>First I determine for each unique value in the array how many times it does occur, by returning an object like <code>{\"1\": 3, \"2\": 3, \"3\": 1}<\/code><\/li>\n<li>Then I determine which are the values occurred most of the times<br \/>\nin the array, by returning an object like <code>{\"count\": 3, \"values\": [\"1\", \"2\"]}<\/code><\/li>\n<\/ul>\n<div class=\"snippet\" data-lang=\"js\" data-hide=\"false\" data-console=\"true\" data-babel=\"false\">\n<div class=\"snippet-code\">\n<pre class=\"snippet-code-js lang-js prettyprint-override\"><code>const data = [\"1\", \"2\", \"1\", \"1\", \"2\", \"2\", \"3\"];\n\n\/\/returns the number of time each unique value occurs in the array\nconst counts = data.reduce( (counts, item) =&gt; {\n  if(item in counts)\n    counts[item] += 1;\n  else\n    counts[item] = 1;\n  return counts;\n}, {});\n\nconsole.log(counts);\n\/*\n{\n  \"1\": 3,\n  \"2\": 3,\n  \"3\": 1\n}\n*\/\n\n\/\/returns which values and how many times occur the most \nconst max = Object.entries(counts)\n  .reduce((max, [value, count])=&gt; {\n      if(count &lt; max.count)\n        return max;\n      if(count == max.count){\n        max.values.push(value);\n        return max;\n      }\n      return {count: count, values: [value]};\n    },{count: 0, values: []});\n\nconsole.log(max);\n\/*\n{\n  \"count\": 3,\n  \"values\": [\n    \"1\",\n    \"2\"\n  ]\n}\n*\/<\/code><\/pre>\n<\/div>\n<\/div><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\">0<\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved Array&#8217;s elements in JavaScript [duplicate] <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] This is an approach using Array.reduce() https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/JavaScript\/Reference\/Global_Objects\/Array\/reduce First I determine for each unique value in the array how many times it does occur, by returning an object like {&#8220;1&#8221;: 3, &#8220;2&#8221;: 3, &#8220;3&#8221;: 1} Then I determine which are the values occurred most of the times in the array, by returning an object like &#8230; <a title=\"[Solved] Array&#8217;s elements in JavaScript [duplicate]\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-arrays-elements-in-javascript-duplicate\/\" aria-label=\"More on [Solved] Array&#8217;s elements in JavaScript [duplicate]\">Read more<\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[320],"tags":[361,333],"class_list":["post-34309","post","type-post","status-publish","format-standard","hentry","category-solved","tag-arrays","tag-javascript"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] Array&#039;s elements in JavaScript [duplicate] - JassWeb<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/jassweb.com\/solved\/solved-arrays-elements-in-javascript-duplicate\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] Array&#039;s elements in JavaScript [duplicate] - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] This is an approach using Array.reduce() https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/JavaScript\/Reference\/Global_Objects\/Array\/reduce First I determine for each unique value in the array how many times it does occur, by returning an object like {&quot;1&quot;: 3, &quot;2&quot;: 3, &quot;3&quot;: 1} Then I determine which are the values occurred most of the times in the array, by returning an object like ... Read more\" \/>\n<meta property=\"og:url\" content=\"https:\/\/jassweb.com\/solved\/solved-arrays-elements-in-javascript-duplicate\/\" \/>\n<meta property=\"og:site_name\" content=\"JassWeb\" \/>\n<meta property=\"article:published_time\" content=\"2023-03-04T03:58:09+00:00\" \/>\n<meta name=\"author\" content=\"Kirat\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Kirat\" \/>\n\t<meta name=\"twitter:label2\" content=\"Est. reading time\" \/>\n\t<meta name=\"twitter:data2\" content=\"1 minute\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/jassweb.com\/solved\/solved-arrays-elements-in-javascript-duplicate\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/jassweb.com\/solved\/solved-arrays-elements-in-javascript-duplicate\/\"},\"author\":{\"name\":\"Kirat\",\"@id\":\"https:\/\/jassweb.com\/solved\/#\/schema\/person\/65c9c7b7958150c0dc8371fa35dd7c31\"},\"headline\":\"[Solved] Array&#8217;s elements in JavaScript [duplicate]\",\"datePublished\":\"2023-03-04T03:58:09+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/jassweb.com\/solved\/solved-arrays-elements-in-javascript-duplicate\/\"},\"wordCount\":75,\"publisher\":{\"@id\":\"https:\/\/jassweb.com\/solved\/#organization\"},\"keywords\":[\"arrays\",\"javascript\"],\"articleSection\":[\"Solved\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/jassweb.com\/solved\/solved-arrays-elements-in-javascript-duplicate\/\",\"url\":\"https:\/\/jassweb.com\/solved\/solved-arrays-elements-in-javascript-duplicate\/\",\"name\":\"[Solved] Array's elements in JavaScript [duplicate] - JassWeb\",\"isPartOf\":{\"@id\":\"https:\/\/jassweb.com\/solved\/#website\"},\"datePublished\":\"2023-03-04T03:58:09+00:00\",\"breadcrumb\":{\"@id\":\"https:\/\/jassweb.com\/solved\/solved-arrays-elements-in-javascript-duplicate\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\/\/jassweb.com\/solved\/solved-arrays-elements-in-javascript-duplicate\/\"]}]},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\/\/jassweb.com\/solved\/solved-arrays-elements-in-javascript-duplicate\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\/\/jassweb.com\/solved\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"[Solved] Array&#8217;s elements in JavaScript [duplicate]\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\/\/jassweb.com\/solved\/#website\",\"url\":\"https:\/\/jassweb.com\/solved\/\",\"name\":\"JassWeb\",\"description\":\"Build High-quality Websites\",\"publisher\":{\"@id\":\"https:\/\/jassweb.com\/solved\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\/\/jassweb.com\/solved\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\/\/jassweb.com\/solved\/#organization\",\"name\":\"Jass Web\",\"url\":\"https:\/\/jassweb.com\/solved\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/jassweb.com\/solved\/#\/schema\/logo\/image\/\",\"url\":\"https:\/\/jassweb.com\/wp-content\/uploads\/2021\/02\/jass-website-logo-1.png\",\"contentUrl\":\"https:\/\/jassweb.com\/wp-content\/uploads\/2021\/02\/jass-website-logo-1.png\",\"width\":693,\"height\":132,\"caption\":\"Jass Web\"},\"image\":{\"@id\":\"https:\/\/jassweb.com\/solved\/#\/schema\/logo\/image\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\/\/jassweb.com\/solved\/#\/schema\/person\/65c9c7b7958150c0dc8371fa35dd7c31\",\"name\":\"Kirat\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\/\/jassweb.com\/solved\/#\/schema\/person\/image\/\",\"url\":\"https:\/\/jassweb.com\/solved\/wp-content\/litespeed\/avatar\/1261af3c9451399fa1336d28b98ea3bb.jpg?ver=1775798750\",\"contentUrl\":\"https:\/\/jassweb.com\/solved\/wp-content\/litespeed\/avatar\/1261af3c9451399fa1336d28b98ea3bb.jpg?ver=1775798750\",\"caption\":\"Kirat\"},\"sameAs\":[\"http:\/\/jassweb.com\"],\"url\":\"https:\/\/jassweb.com\/solved\/author\/jaspritsinghghumangmail-com\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"[Solved] Array's elements in JavaScript [duplicate] - JassWeb","robots":{"index":"index","follow":"follow","max-snippet":"max-snippet:-1","max-image-preview":"max-image-preview:large","max-video-preview":"max-video-preview:-1"},"canonical":"https:\/\/jassweb.com\/solved\/solved-arrays-elements-in-javascript-duplicate\/","og_locale":"en_US","og_type":"article","og_title":"[Solved] Array's elements in JavaScript [duplicate] - JassWeb","og_description":"[ad_1] This is an approach using Array.reduce() https:\/\/developer.mozilla.org\/en-US\/docs\/Web\/JavaScript\/Reference\/Global_Objects\/Array\/reduce First I determine for each unique value in the array how many times it does occur, by returning an object like {\"1\": 3, \"2\": 3, \"3\": 1} Then I determine which are the values occurred most of the times in the array, by returning an object like ... Read more","og_url":"https:\/\/jassweb.com\/solved\/solved-arrays-elements-in-javascript-duplicate\/","og_site_name":"JassWeb","article_published_time":"2023-03-04T03:58:09+00:00","author":"Kirat","twitter_card":"summary_large_image","twitter_misc":{"Written by":"Kirat","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/jassweb.com\/solved\/solved-arrays-elements-in-javascript-duplicate\/#article","isPartOf":{"@id":"https:\/\/jassweb.com\/solved\/solved-arrays-elements-in-javascript-duplicate\/"},"author":{"name":"Kirat","@id":"https:\/\/jassweb.com\/solved\/#\/schema\/person\/65c9c7b7958150c0dc8371fa35dd7c31"},"headline":"[Solved] Array&#8217;s elements in JavaScript [duplicate]","datePublished":"2023-03-04T03:58:09+00:00","mainEntityOfPage":{"@id":"https:\/\/jassweb.com\/solved\/solved-arrays-elements-in-javascript-duplicate\/"},"wordCount":75,"publisher":{"@id":"https:\/\/jassweb.com\/solved\/#organization"},"keywords":["arrays","javascript"],"articleSection":["Solved"],"inLanguage":"en-US"},{"@type":"WebPage","@id":"https:\/\/jassweb.com\/solved\/solved-arrays-elements-in-javascript-duplicate\/","url":"https:\/\/jassweb.com\/solved\/solved-arrays-elements-in-javascript-duplicate\/","name":"[Solved] Array's elements in JavaScript [duplicate] - JassWeb","isPartOf":{"@id":"https:\/\/jassweb.com\/solved\/#website"},"datePublished":"2023-03-04T03:58:09+00:00","breadcrumb":{"@id":"https:\/\/jassweb.com\/solved\/solved-arrays-elements-in-javascript-duplicate\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/jassweb.com\/solved\/solved-arrays-elements-in-javascript-duplicate\/"]}]},{"@type":"BreadcrumbList","@id":"https:\/\/jassweb.com\/solved\/solved-arrays-elements-in-javascript-duplicate\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/jassweb.com\/solved\/"},{"@type":"ListItem","position":2,"name":"[Solved] Array&#8217;s elements in JavaScript [duplicate]"}]},{"@type":"WebSite","@id":"https:\/\/jassweb.com\/solved\/#website","url":"https:\/\/jassweb.com\/solved\/","name":"JassWeb","description":"Build High-quality Websites","publisher":{"@id":"https:\/\/jassweb.com\/solved\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/jassweb.com\/solved\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/jassweb.com\/solved\/#organization","name":"Jass Web","url":"https:\/\/jassweb.com\/solved\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/jassweb.com\/solved\/#\/schema\/logo\/image\/","url":"https:\/\/jassweb.com\/wp-content\/uploads\/2021\/02\/jass-website-logo-1.png","contentUrl":"https:\/\/jassweb.com\/wp-content\/uploads\/2021\/02\/jass-website-logo-1.png","width":693,"height":132,"caption":"Jass Web"},"image":{"@id":"https:\/\/jassweb.com\/solved\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/jassweb.com\/solved\/#\/schema\/person\/65c9c7b7958150c0dc8371fa35dd7c31","name":"Kirat","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/jassweb.com\/solved\/#\/schema\/person\/image\/","url":"https:\/\/jassweb.com\/solved\/wp-content\/litespeed\/avatar\/1261af3c9451399fa1336d28b98ea3bb.jpg?ver=1775798750","contentUrl":"https:\/\/jassweb.com\/solved\/wp-content\/litespeed\/avatar\/1261af3c9451399fa1336d28b98ea3bb.jpg?ver=1775798750","caption":"Kirat"},"sameAs":["http:\/\/jassweb.com"],"url":"https:\/\/jassweb.com\/solved\/author\/jaspritsinghghumangmail-com\/"}]}},"_links":{"self":[{"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/posts\/34309","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/comments?post=34309"}],"version-history":[{"count":0,"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/posts\/34309\/revisions"}],"wp:attachment":[{"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/media?parent=34309"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/categories?post=34309"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/jassweb.com\/solved\/wp-json\/wp\/v2\/tags?post=34309"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}