{"id":581,"date":"2023-07-22T12:39:57","date_gmt":"2023-07-22T12:39:57","guid":{"rendered":"https:\/\/www.devopsconsulting.in\/blog\/?p=581"},"modified":"2023-07-22T12:39:59","modified_gmt":"2023-07-22T12:39:59","slug":"check-if-an-array-is-empty-or-null-in-javascript","status":"publish","type":"post","link":"https:\/\/www.devopsconsulting.in\/blog\/check-if-an-array-is-empty-or-null-in-javascript\/","title":{"rendered":"Check if an array is empty or null in Javascript"},"content":{"rendered":"\n<p>I&#8217;ll assist you if you require jQuery to determine whether an array is empty or undefined. Javascript makes it simple to determine whether an array is empty or not. We&#8217;ll examine the length of the array and use a straightforward if condition. In JavaScript, we can quickly determine whether an array is empty, null, or undefined.<\/p>\n\n\n\n<p>I&#8217;ll offer you a straightforward example here with a variety of scenarios, so you can choose from any of them. I&#8217;ll advise you to use this one as the simple code below:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>if (myArray &amp;&amp; myArray.length > 0) {\r\n\r\n   console.log('myArray is not empty.');\r\n\r\n}else{\r\n\r\n   console.log('myArray is empty.');\r\n\r\n}<\/code><\/pre>\n\n\n\n<p>You can also see a complete example of a jQuery array being checked for emptyness below. So let&#8217;s run the code below and examine the output, which I&#8217;ve included below:<\/p>\n\n\n\n<p>Example:<\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>&lt;!DOCTYPE html>\r\n&lt;html>\r\n&lt;head>\r\n    &lt;title>How to check if array is empty or null or undefined in javascript?&lt;\/title>\r\n&lt;\/head>\r\n&lt;body>\r\n  \r\n&lt;script type=\"text\/javascript\">\r\n   \r\n    \/*\r\n      Basic Checking for Jquery Array\r\n    *\/\r\n    var myArray = &#91;1, 2, 3];\r\n  \r\n    if (myArray &amp;&amp; myArray.length > 0) {\r\n        console.log('myArray is not empty.');\r\n    }else{\r\n        console.log('myArray is empty.');\r\n    }\r\n  \r\n  \r\n    \/*\r\n      Basic Checking with empty array for Jquery Array\r\n    *\/\r\n    var myArray2 = &#91;];\r\n  \r\n    if (myArray2 &amp;&amp; myArray2.length > 0) {\r\n        console.log('myArray2 is not empty.');\r\n    }else{\r\n        console.log('myArray2 is empty.');\r\n    }\r\n  \r\n  \r\n    \/*\r\n      Basic Checking with undefined array for Jquery Array\r\n    *\/\r\n    if (typeof myArray3 !== 'undefined' &amp;&amp; myArray3.length > 0) {\r\n        console.log('myArray3 is not empty.');\r\n    }else{\r\n        console.log('myArray3 is empty.');\r\n    }\r\n  \r\n  \r\n    \/*\r\n      Basic Checking with null array for Jquery Array\r\n    *\/\r\n    var myArray4 = null;\r\n   \r\n    if (myArray4 &amp;&amp; myArray4.length > 0) {\r\n        console.log('myArray4 is not empty.');\r\n    }else{\r\n        console.log('myArray4 is empty.');\r\n    }\r\n   \r\n&lt;\/script>\r\n&lt;\/body>\r\n&lt;\/html>\r\n<\/code><\/pre>\n\n\n\n<p><strong>Output:<\/strong><\/p>\n\n\n\n<pre class=\"wp-block-code\"><code>myArray is not empty.\r\n\r\nmyArray2 is empty.\r\n\r\nmyArray3 is empty.\r\n\r\nmyArray4 is empty.<\/code><\/pre>\n","protected":false},"excerpt":{"rendered":"<p>I&#8217;ll assist you if you require jQuery to determine whether an array is empty or undefined. Javascript makes it simple to determine whether an array is empty&#8230; <\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[86],"tags":[106],"class_list":["post-581","post","type-post","status-publish","format-standard","hentry","category-javascript","tag-how-to-check-if-an-array-is-empty-or-null-in-javascript"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Check if an array is empty or null in Javascript - DevOps Consulting<\/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:\/\/www.devopsconsulting.in\/blog\/check-if-an-array-is-empty-or-null-in-javascript\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Check if an array is empty or null in Javascript - DevOps Consulting\" \/>\n<meta property=\"og:description\" content=\"I&#8217;ll assist you if you require jQuery to determine whether an array is empty or undefined. Javascript makes it simple to determine whether an array is empty...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.devopsconsulting.in\/blog\/check-if-an-array-is-empty-or-null-in-javascript\/\" \/>\n<meta property=\"og:site_name\" content=\"DevOps Consulting\" \/>\n<meta property=\"article:published_time\" content=\"2023-07-22T12:39:57+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2023-07-22T12:39:59+00:00\" \/>\n<meta name=\"author\" content=\"Abhishek Singh\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"Abhishek Singh\" \/>\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:\\\/\\\/www.devopsconsulting.in\\\/blog\\\/check-if-an-array-is-empty-or-null-in-javascript\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.devopsconsulting.in\\\/blog\\\/check-if-an-array-is-empty-or-null-in-javascript\\\/\"},\"author\":{\"name\":\"Abhishek Singh\",\"@id\":\"https:\\\/\\\/www.devopsconsulting.in\\\/blog\\\/#\\\/schema\\\/person\\\/fc397ba8be42f9fdd53450edfc73006f\"},\"headline\":\"Check if an array is empty or null in Javascript\",\"datePublished\":\"2023-07-22T12:39:57+00:00\",\"dateModified\":\"2023-07-22T12:39:59+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.devopsconsulting.in\\\/blog\\\/check-if-an-array-is-empty-or-null-in-javascript\\\/\"},\"wordCount\":136,\"commentCount\":1,\"keywords\":[\"how to Check if an array is empty or null in Javascript\"],\"articleSection\":[\"JavaScript\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.devopsconsulting.in\\\/blog\\\/check-if-an-array-is-empty-or-null-in-javascript\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.devopsconsulting.in\\\/blog\\\/check-if-an-array-is-empty-or-null-in-javascript\\\/\",\"url\":\"https:\\\/\\\/www.devopsconsulting.in\\\/blog\\\/check-if-an-array-is-empty-or-null-in-javascript\\\/\",\"name\":\"Check if an array is empty or null in Javascript - DevOps Consulting\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.devopsconsulting.in\\\/blog\\\/#website\"},\"datePublished\":\"2023-07-22T12:39:57+00:00\",\"dateModified\":\"2023-07-22T12:39:59+00:00\",\"author\":{\"@id\":\"https:\\\/\\\/www.devopsconsulting.in\\\/blog\\\/#\\\/schema\\\/person\\\/fc397ba8be42f9fdd53450edfc73006f\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/www.devopsconsulting.in\\\/blog\\\/check-if-an-array-is-empty-or-null-in-javascript\\\/\"]}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/www.devopsconsulting.in\\\/blog\\\/#website\",\"url\":\"https:\\\/\\\/www.devopsconsulting.in\\\/blog\\\/\",\"name\":\"DevOps Consulting\",\"description\":\"DevOps Consulting | SRE Consulting | DevSecOps Consulting | MLOps Consulting\",\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/www.devopsconsulting.in\\\/blog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/www.devopsconsulting.in\\\/blog\\\/#\\\/schema\\\/person\\\/fc397ba8be42f9fdd53450edfc73006f\",\"name\":\"Abhishek Singh\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/790feefe779852cdf344ca7318bf6c13832223c9b3c6bf4d217658412041026d?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/790feefe779852cdf344ca7318bf6c13832223c9b3c6bf4d217658412041026d?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/790feefe779852cdf344ca7318bf6c13832223c9b3c6bf4d217658412041026d?s=96&d=mm&r=g\",\"caption\":\"Abhishek Singh\"},\"description\":\"I\u2019m Abhishek, a DevOps, SRE, DevSecOps, and Cloud expert with a passion for sharing knowledge and real-world experiences. I\u2019ve had the opportunity to work with Cotocus and continue to contribute to multiple platforms where I share insights across different domains: \u2022 DevOps School \u2013 Tech blogs and tutorials \u2022 Holiday Landmark \u2013 Travel stories and guides \u2022 Stocks Mantra \u2013 Stock market strategies and tips \u2022 My Medic Plus \u2013 Health and fitness guidance \u2022 TrueReviewNow \u2013 Honest product reviews \u2022 Wizbrand \u2013 SEO and digital tools for businesses I\u2019m also exploring the fascinating world of Quantum Computing.\",\"url\":\"https:\\\/\\\/www.devopsconsulting.in\\\/blog\\\/author\\\/abhishek\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"Check if an array is empty or null in Javascript - DevOps Consulting","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:\/\/www.devopsconsulting.in\/blog\/check-if-an-array-is-empty-or-null-in-javascript\/","og_locale":"en_US","og_type":"article","og_title":"Check if an array is empty or null in Javascript - DevOps Consulting","og_description":"I&#8217;ll assist you if you require jQuery to determine whether an array is empty or undefined. 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