{"id":7237,"date":"2021-07-31T12:34:09","date_gmt":"2021-07-31T12:34:09","guid":{"rendered":"https:\/\/www.scmgalaxy.com\/tutorials\/?p=7237"},"modified":"2022-04-13T16:30:47","modified_gmt":"2022-04-13T16:30:47","slug":"define-function-expression-in-javascript","status":"publish","type":"post","link":"https:\/\/www.scmgalaxy.com\/tutorials\/define-function-expression-in-javascript\/","title":{"rendered":"Define Function expression in JavaScript"},"content":{"rendered":"\n<h2 class=\"wp-block-heading\">Function Expression<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">When we create a function and assign it to a variable, known as a function expression.<\/p>\n\n\n\n<script src=\"https:\/\/gist.github.com\/vijaypk376\/46c4a99f1f13703e3dbd8184a2f42ec3.js\"><\/script>\n\n\n\n<p class=\"wp-block-paragraph\">Note: &#8211;<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>You can\u201ft call function expression before the function definition.<\/strong><\/li><li><strong>Function expressions in JavaScript are not hoisted, unlike function declarations.<\/strong><\/li><\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Anonymous Functions<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Anonymous functions allow the creation of functions that have no specified name.<\/p>\n\n\n\n<ul class=\"wp-block-list\"><li><strong>Can be stored in a Variable<\/strong><\/li><li><strong>Can be Returned in a Function<\/strong><\/li><li><strong>Can be pass in a Function<\/strong><\/li><\/ul>\n\n\n\n<script src=\"https:\/\/gist.github.com\/vijaypk376\/20232b8266da50f6efc4ae61268160aa.js\"><\/script>\n\n\n\n<h2 class=\"wp-block-heading\">Store Anonymous Function in Variable<\/h2>\n\n\n\n<script src=\"https:\/\/gist.github.com\/vijaypk376\/1df0d78e0c6c098d87780a117c1a9460.js\"><\/script>\n\n\n\n<h2 class=\"wp-block-heading\">Passing Anonymous Function as Argument<\/h2>\n\n\n\n<script src=\"https:\/\/gist.github.com\/vijaypk376\/ab7b9a35baebd661acb57b3bcb4d2b83.js\"><\/script>\n\n\n\n<h2 class=\"wp-block-heading\">Returning Anonymous Function<\/h2>\n\n\n\n<script src=\"https:\/\/gist.github.com\/vijaypk376\/0146f165d15c123704a7e7a8d904ec71.js\"><\/script>\n","protected":false},"excerpt":{"rendered":"<p>Function Expression When we create a function and assign it to a variable, known as a function expression. Note: &#8211; [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_joinchat":[],"footnotes":""},"categories":[16],"tags":[3052,5144,5095,317],"class_list":["post-7237","post","type-post","status-publish","format-standard","hentry","category-javascript","tag-arguments","tag-functions","tag-javascript","tag-variables"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.4 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>Define Function expression in JavaScript - scmGalaxy<\/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.scmgalaxy.com\/tutorials\/define-function-expression-in-javascript\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Define Function expression in JavaScript - scmGalaxy\" \/>\n<meta property=\"og:description\" content=\"Function Expression When we create a function and assign it to a variable, known as a function expression. Note: &#8211; [&hellip;]\" \/>\n<meta property=\"og:url\" content=\"https:\/\/www.scmgalaxy.com\/tutorials\/define-function-expression-in-javascript\/\" \/>\n<meta property=\"og:site_name\" content=\"scmGalaxy\" \/>\n<meta property=\"article:published_time\" content=\"2021-07-31T12:34:09+00:00\" \/>\n<meta property=\"article:modified_time\" content=\"2022-04-13T16:30:47+00:00\" \/>\n<meta name=\"author\" content=\"rajeshkumar\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"rajeshkumar\" \/>\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.scmgalaxy.com\\\/tutorials\\\/define-function-expression-in-javascript\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/www.scmgalaxy.com\\\/tutorials\\\/define-function-expression-in-javascript\\\/\"},\"author\":{\"name\":\"rajeshkumar\",\"@id\":\"https:\\\/\\\/www.scmgalaxy.com\\\/tutorials\\\/#\\\/schema\\\/person\\\/a40e0dd38feee7c2779460a804d49361\"},\"headline\":\"Define Function expression in JavaScript\",\"datePublished\":\"2021-07-31T12:34:09+00:00\",\"dateModified\":\"2022-04-13T16:30:47+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/www.scmgalaxy.com\\\/tutorials\\\/define-function-expression-in-javascript\\\/\"},\"wordCount\":90,\"commentCount\":0,\"keywords\":[\"Arguments\",\"functions\",\"Javascript\",\"Variables\"],\"articleSection\":[\"JavaScript\"],\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/www.scmgalaxy.com\\\/tutorials\\\/define-function-expression-in-javascript\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/www.scmgalaxy.com\\\/tutorials\\\/define-function-expression-in-javascript\\\/\",\"url\":\"https:\\\/\\\/www.scmgalaxy.com\\\/tutorials\\\/define-function-expression-in-javascript\\\/\",\"name\":\"Define Function expression in JavaScript - 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