{"id":16066,"date":"2022-10-14T02:49:43","date_gmt":"2022-10-13T21:19:43","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-sum-numeric-values-in-a-multidimentional-array\/"},"modified":"2022-10-14T02:49:43","modified_gmt":"2022-10-13T21:19:43","slug":"solved-sum-numeric-values-in-a-multidimentional-array","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-sum-numeric-values-in-a-multidimentional-array\/","title":{"rendered":"[Solved] sum numeric values in a multidimentional array"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-31871994\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"31871994\" data-parentid=\"31871829\" data-score=\"0\" 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>Just:<\/p>\n<\/p>\n<div class=\"snippet\" data-lang=\"js\" data-hide=\"false\">\n<div class=\"snippet-code\">\n<pre class=\"snippet-code-js lang-js prettyprint-override\"><code>var scores = [{\r\n  \"firstName\": \"John\",\r\n  \"value\": 89\r\n}, {\r\n  \"firstName\": \"Peter\",\r\n  \"value\": 151\r\n}, {\r\n  \"firstName\": \"Anna\",\r\n  \"value\": 200\r\n}, {\r\n  \"firstName\": \"Peter\",\r\n  \"value\": 22\r\n}, {\r\n  \"firstName\": \"Anna\",\r\n  \"value\": 60\r\n}];\r\n\r\nvar names = {};\r\nvar new_arr = [];\r\n\r\nscores.forEach(function(entry) {\r\n  if (names.hasOwnProperty(entry.firstName)) {\r\n    new_arr[names[entry.firstName]].value += entry.value;\r\n  } else {\r\n    names[entry.firstName] = new_arr.length;\r\n    new_arr.push({\r\n      \"firstName\": entry.firstName,\r\n      \"value\": entry.value\r\n    });\r\n  }\r\n});\r\n\r\nconsole.log(new_arr);<\/code><\/pre>\n<\/div>\n<\/div><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\">3<\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved sum numeric values in a multidimentional array <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] Just: var scores = [{ &#8220;firstName&#8221;: &#8220;John&#8221;, &#8220;value&#8221;: 89 }, { &#8220;firstName&#8221;: &#8220;Peter&#8221;, &#8220;value&#8221;: 151 }, { &#8220;firstName&#8221;: &#8220;Anna&#8221;, &#8220;value&#8221;: 200 }, { &#8220;firstName&#8221;: &#8220;Peter&#8221;, &#8220;value&#8221;: 22 }, { &#8220;firstName&#8221;: &#8220;Anna&#8221;, &#8220;value&#8221;: 60 }]; var names = {}; var new_arr = []; scores.forEach(function(entry) { if (names.hasOwnProperty(entry.firstName)) { new_arr[names[entry.firstName]].value += entry.value; } else { names[entry.firstName] &#8230; <a title=\"[Solved] sum numeric values in a multidimentional array\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-sum-numeric-values-in-a-multidimentional-array\/\" aria-label=\"More on [Solved] sum numeric values in a multidimentional array\">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":[333,388,356],"class_list":["post-16066","post","type-post","status-publish","format-standard","hentry","category-solved","tag-javascript","tag-jquery","tag-json"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] sum numeric values in a multidimentional array - 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-sum-numeric-values-in-a-multidimentional-array\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] sum numeric values in a multidimentional array - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] Just: var scores = [{ &quot;firstName&quot;: &quot;John&quot;, &quot;value&quot;: 89 }, { &quot;firstName&quot;: &quot;Peter&quot;, &quot;value&quot;: 151 }, { &quot;firstName&quot;: &quot;Anna&quot;, &quot;value&quot;: 200 }, { &quot;firstName&quot;: &quot;Peter&quot;, &quot;value&quot;: 22 }, { &quot;firstName&quot;: &quot;Anna&quot;, &quot;value&quot;: 60 }]; var names = {}; var new_arr = []; scores.forEach(function(entry) { if (names.hasOwnProperty(entry.firstName)) { new_arr[names[entry.firstName]].value += entry.value; } else { names[entry.firstName] ... Read more\" \/>\n<meta property=\"og:url\" content=\"https:\/\/jassweb.com\/solved\/solved-sum-numeric-values-in-a-multidimentional-array\/\" \/>\n<meta property=\"og:site_name\" content=\"JassWeb\" \/>\n<meta property=\"article:published_time\" content=\"2022-10-13T21:19:43+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<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"Article\",\"@id\":\"https:\/\/jassweb.com\/solved\/solved-sum-numeric-values-in-a-multidimentional-array\/#article\",\"isPartOf\":{\"@id\":\"https:\/\/jassweb.com\/solved\/solved-sum-numeric-values-in-a-multidimentional-array\/\"},\"author\":{\"name\":\"Kirat\",\"@id\":\"https:\/\/jassweb.com\/solved\/#\/schema\/person\/65c9c7b7958150c0dc8371fa35dd7c31\"},\"headline\":\"[Solved] sum numeric values in a multidimentional array\",\"datePublished\":\"2022-10-13T21:19:43+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\/\/jassweb.com\/solved\/solved-sum-numeric-values-in-a-multidimentional-array\/\"},\"wordCount\":19,\"publisher\":{\"@id\":\"https:\/\/jassweb.com\/solved\/#organization\"},\"keywords\":[\"javascript\",\"jquery\",\"json\"],\"articleSection\":[\"Solved\"],\"inLanguage\":\"en-US\"},{\"@type\":\"WebPage\",\"@id\":\"https:\/\/jassweb.com\/solved\/solved-sum-numeric-values-in-a-multidimentional-array\/\",\"url\":\"https:\/\/jassweb.com\/solved\/solved-sum-numeric-values-in-a-multidimentional-array\/\",\"name\":\"[Solved] sum numeric values in a multidimentional array - 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