{"id":31404,"date":"2023-01-21T06:01:40","date_gmt":"2023-01-21T00:31:40","guid":{"rendered":"https:\/\/jassweb.com\/solved\/solved-how-to-make-new-array-or-arrays-with-contents-from-other-arrays\/"},"modified":"2023-01-21T06:01:40","modified_gmt":"2023-01-21T00:31:40","slug":"solved-how-to-make-new-array-or-arrays-with-contents-from-other-arrays","status":"publish","type":"post","link":"https:\/\/jassweb.com\/solved\/solved-how-to-make-new-array-or-arrays-with-contents-from-other-arrays\/","title":{"rendered":"[Solved] How to make new array or arrays with contents from other arrays?"},"content":{"rendered":"<p> [ad_1]<br \/>\n<\/p>\n<div id=\"answer-58874132\" class=\"answer js-answer accepted-answer js-accepted-answer\" data-answerid=\"58874132\" data-parentid=\"58874001\" data-score=\"4\" 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>If you do not care about destroying <code>arr2<\/code>, neither about having a deep copy of <code>arr1[0]<\/code>, a simple <code>unshift()<\/code> can do that:<\/p>\n<\/p>\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 arr1 = [[1, 2, 3, 4], [5, 6, 7, 8]];\r\nconst arr2 = [['some1', 'some2'], ['some3', 'some4']];\r\n\r\narr2.unshift(arr1[0]);\r\nconsole.log(JSON.stringify(arr2));<\/code><\/pre>\n<\/div>\n<\/div>\n<p>Of course those are really some conditions which may not fit your case.<\/p>\n<\/p><\/div>\n<div class=\"mt24\"><\/div>\n<\/div>\n<p>            <span class=\"d-none\" itemprop=\"commentCount\"><\/span> <\/p><\/div>\n<\/div>\n<p>[ad_2]<\/p>\n<p>solved How to make new array or arrays with contents from other arrays? <\/p>\n","protected":false},"excerpt":{"rendered":"<p>[ad_1] If you do not care about destroying arr2, neither about having a deep copy of arr1[0], a simple unshift() can do that: const arr1 = [[1, 2, 3, 4], [5, 6, 7, 8]]; const arr2 = [[&#8216;some1&#8217;, &#8216;some2&#8217;], [&#8216;some3&#8217;, &#8216;some4&#8217;]]; arr2.unshift(arr1[0]); console.log(JSON.stringify(arr2)); Of course those are really some conditions which may not fit your &#8230; <a title=\"[Solved] How to make new array or arrays with contents from other arrays?\" class=\"read-more\" href=\"https:\/\/jassweb.com\/solved\/solved-how-to-make-new-array-or-arrays-with-contents-from-other-arrays\/\" aria-label=\"More on [Solved] How to make new array or arrays with contents from other arrays?\">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":[361,333,356,902,561],"class_list":["post-31404","post","type-post","status-publish","format-standard","hentry","category-solved","tag-arrays","tag-javascript","tag-json","tag-node-js","tag-sorting"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v26.5 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>[Solved] How to make new array or arrays with contents from other arrays? - 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-how-to-make-new-array-or-arrays-with-contents-from-other-arrays\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"[Solved] How to make new array or arrays with contents from other arrays? - JassWeb\" \/>\n<meta property=\"og:description\" content=\"[ad_1] If you do not care about destroying arr2, neither about having a deep copy of arr1[0], a simple unshift() can do that: const arr1 = [[1, 2, 3, 4], [5, 6, 7, 8]]; const arr2 = [[&#039;some1&#039;, &#039;some2&#039;], [&#039;some3&#039;, &#039;some4&#039;]]; arr2.unshift(arr1[0]); console.log(JSON.stringify(arr2)); Of course those are really some conditions which may not fit your ... 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