{"id":60680,"date":"2024-08-19T11:30:29","date_gmt":"2024-08-19T11:30:29","guid":{"rendered":"https:\/\/ushopwell.com\/ublog\/0039-javascript-interview-questions-coding-javascript\/"},"modified":"2024-08-19T11:30:29","modified_gmt":"2024-08-19T11:30:29","slug":"0039-javascript-interview-questions-coding-javascript","status":"publish","type":"post","link":"https:\/\/ushopwell.com\/ublog\/0039-javascript-interview-questions-coding-javascript\/","title":{"rendered":"#0039 JavaScript Interview Questions | #coding #javascript"},"content":{"rendered":"<div class=\"youtubomatic-video-container\"><iframe loading=\"lazy\" width=\"580\" height=\"380\" src=\"https:\/\/www.youtube.com\/embed\/fz8B9o09gkY?autoplay=1&#038;controls=1&#038;hl=en\" frameborder=\"0\" allowfullscreen><\/iframe><\/div>\n<p>0039 JavaScript Interview Questions | #coding #javascript<br \/>\n In this video,<br \/>\nWe have  a function showMessage is declared inside an if block and called outside it. We get undefined because the function&#8217;s body is only attached to the outer scope if the if condition is true. Since the condition is 0, the block is never executed, and showMessage is not defined in the outer scope. Changing the condition to 1 will make the function body visible when running the code.<\/p>\n<p>#javascript   #codingtricks   #technical   #webdevelopment   #programming   #codetips  #debugginghours   #javascripttips   #learntocode2023   #shortvideo    #react  #shorts   #reactjs<\/p>\n<p>\u2014\u2014\u2014-learn more topics\u2014\u2014-<br \/>\n\u2b50 Memoization In javaScript<br \/>\n<a href=\"https:\/\/youtu.be\/2JCvyVwG_Dc?si=vXhV4OGnZcokQj2F\" target=\"_blank\" rel=\"noopener\">https:\/\/youtu.be\/2JCvyVwG_Dc?si=vXhV4OGnZcokQj2F<\/a><\/p>\n<p>\u2b50 Mind blowing javascript trick<br \/>\n<a href=\"https:\/\/youtube.com\/shorts\/Sz18aUogUAs?si=3wROnLsO7zAD5Xn6\" target=\"_blank\" rel=\"noopener\">https:\/\/youtube.com\/shorts\/Sz18aUogUAs?si=3wROnLsO7zAD5Xn6<\/a><\/p>\n<p>\u2b50 Routing in ReactJs<br \/>\n<a href=\"https:\/\/youtube.com\/shorts\/Z10dFm1tozI?si=U3SYVBjQO8y2llYb\" target=\"_blank\" rel=\"noopener\">https:\/\/youtube.com\/shorts\/Z10dFm1tozI?si=U3SYVBjQO8y2llYb<\/a><\/p>\n<p>\ud83c\udf1f Looking for More Learning Videos? Subscribe to Our Channel! \ud83c\udf1f<\/p>\n<p>Discover expert tutorials, insider tips, and crucial insights tailored to boost your software engineering journey. Hit Subscribe now and join our vibrant community!<\/p>\n<p>\ud83d\udd14 Stay informed \u2013 subscribe today!<br \/>\n<a href=\"https:\/\/www.youtube.com\/@\" target=\"_blank\" rel=\"noopener\">https:\/\/www.youtube.com\/@<\/a>DebuggingHoursoe3lj<\/p>\n","protected":false},"excerpt":{"rendered":"<p>0039 JavaScript Interview Questions | #coding #javascript In this video, We have a function showMessage is declared inside an if block and called outside it. We get undefined because the function&#8217;s body is only attached to the outer scope if the if condition is true. Since the condition is 0, the block is never executed, and showMessage is not defined in the outer scope. Changing the condition to 1 will&#8230;<\/p>\n","protected":false},"author":1,"featured_media":60681,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":"","tve_updated_post":"","tve_custom_css":"","tve_user_custom_css":"","tve_globals":{},"tcb2_ready":0,"tcb_editor_enabled":0,"tve_landing_page":"","_tve_header":"","_tve_footer":""},"categories":[1],"tags":[],"class_list":["post-60680","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-uncategorized"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.5 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>#0039 JavaScript Interview Questions | #coding #javascript - UshopWell.com<\/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:\/\/ushopwell.com\/ublog\/0039-javascript-interview-questions-coding-javascript\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"#0039 JavaScript Interview Questions | #coding #javascript - UshopWell.com\" \/>\n<meta property=\"og:description\" content=\"0039 JavaScript Interview Questions | #coding #javascript In this video, We have a function showMessage is declared inside an if block and called outside it. We get undefined because the function&#8217;s body is only attached to the outer scope if the if condition is true. Since the condition is 0, the block is never executed, and showMessage is not defined in the outer scope. Changing the condition to 1 will...\" \/>\n<meta property=\"og:url\" content=\"https:\/\/ushopwell.com\/ublog\/0039-javascript-interview-questions-coding-javascript\/\" \/>\n<meta property=\"og:site_name\" content=\"UshopWell.com\" \/>\n<meta property=\"article:published_time\" content=\"2024-08-19T11:30:29+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/ushopwell.com\/ublog\/wp-content\/uploads\/2024\/08\/60680\/0039-javascript-interview-questions-coding-javascript.jpg\" \/>\n\t<meta property=\"og:image:width\" content=\"480\" \/>\n\t<meta property=\"og:image:height\" content=\"360\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/jpeg\" \/>\n<meta name=\"author\" content=\"UShopWell\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:label1\" content=\"Written by\" \/>\n\t<meta name=\"twitter:data1\" content=\"UShopWell\" \/>\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:\\\/\\\/ushopwell.com\\\/ublog\\\/0039-javascript-interview-questions-coding-javascript\\\/#article\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/0039-javascript-interview-questions-coding-javascript\\\/\"},\"author\":{\"name\":\"UShopWell\",\"@id\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/#\\\/schema\\\/person\\\/6fd1f9e0ff932e534c86c70d5acff0fc\"},\"headline\":\"#0039 JavaScript Interview Questions | #coding #javascript\",\"datePublished\":\"2024-08-19T11:30:29+00:00\",\"mainEntityOfPage\":{\"@id\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/0039-javascript-interview-questions-coding-javascript\\\/\"},\"wordCount\":180,\"commentCount\":0,\"publisher\":{\"@id\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/#organization\"},\"image\":{\"@id\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/0039-javascript-interview-questions-coding-javascript\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/wp-content\\\/uploads\\\/2024\\\/08\\\/60680\\\/0039-javascript-interview-questions-coding-javascript.jpg\",\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"CommentAction\",\"name\":\"Comment\",\"target\":[\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/0039-javascript-interview-questions-coding-javascript\\\/#respond\"]}]},{\"@type\":\"WebPage\",\"@id\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/0039-javascript-interview-questions-coding-javascript\\\/\",\"url\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/0039-javascript-interview-questions-coding-javascript\\\/\",\"name\":\"#0039 JavaScript Interview Questions | #coding #javascript - UshopWell.com\",\"isPartOf\":{\"@id\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/0039-javascript-interview-questions-coding-javascript\\\/#primaryimage\"},\"image\":{\"@id\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/0039-javascript-interview-questions-coding-javascript\\\/#primaryimage\"},\"thumbnailUrl\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/wp-content\\\/uploads\\\/2024\\\/08\\\/60680\\\/0039-javascript-interview-questions-coding-javascript.jpg\",\"datePublished\":\"2024-08-19T11:30:29+00:00\",\"breadcrumb\":{\"@id\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/0039-javascript-interview-questions-coding-javascript\\\/#breadcrumb\"},\"inLanguage\":\"en-US\",\"potentialAction\":[{\"@type\":\"ReadAction\",\"target\":[\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/0039-javascript-interview-questions-coding-javascript\\\/\"]}]},{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/0039-javascript-interview-questions-coding-javascript\\\/#primaryimage\",\"url\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/wp-content\\\/uploads\\\/2024\\\/08\\\/60680\\\/0039-javascript-interview-questions-coding-javascript.jpg\",\"contentUrl\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/wp-content\\\/uploads\\\/2024\\\/08\\\/60680\\\/0039-javascript-interview-questions-coding-javascript.jpg\",\"width\":480,\"height\":360,\"caption\":\"#0039 JavaScript Interview Questions | #coding #javascript\"},{\"@type\":\"BreadcrumbList\",\"@id\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/0039-javascript-interview-questions-coding-javascript\\\/#breadcrumb\",\"itemListElement\":[{\"@type\":\"ListItem\",\"position\":1,\"name\":\"Home\",\"item\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/\"},{\"@type\":\"ListItem\",\"position\":2,\"name\":\"#0039 JavaScript Interview Questions | #coding #javascript\"}]},{\"@type\":\"WebSite\",\"@id\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/#website\",\"url\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/\",\"name\":\"UshopWell.com\",\"description\":\"The Premiere Online Marketplace\",\"publisher\":{\"@id\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/#organization\"},\"potentialAction\":[{\"@type\":\"SearchAction\",\"target\":{\"@type\":\"EntryPoint\",\"urlTemplate\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/?s={search_term_string}\"},\"query-input\":{\"@type\":\"PropertyValueSpecification\",\"valueRequired\":true,\"valueName\":\"search_term_string\"}}],\"inLanguage\":\"en-US\"},{\"@type\":\"Organization\",\"@id\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/#organization\",\"name\":\"UshopWell\",\"url\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/\",\"logo\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/#\\\/schema\\\/logo\\\/image\\\/\",\"url\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/wp-content\\\/uploads\\\/2018\\\/01\\\/pandaSwea.png\",\"contentUrl\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/wp-content\\\/uploads\\\/2018\\\/01\\\/pandaSwea.png\",\"width\":365,\"height\":359,\"caption\":\"UshopWell\"},\"image\":{\"@id\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/#\\\/schema\\\/logo\\\/image\\\/\"}},{\"@type\":\"Person\",\"@id\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/#\\\/schema\\\/person\\\/6fd1f9e0ff932e534c86c70d5acff0fc\",\"name\":\"UShopWell\",\"image\":{\"@type\":\"ImageObject\",\"inLanguage\":\"en-US\",\"@id\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/4adb372cadd43b4d4c57964dab95b0f69618bf960d131c4acf49d96d6bbc9c6e?s=96&d=mm&r=g\",\"url\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/4adb372cadd43b4d4c57964dab95b0f69618bf960d131c4acf49d96d6bbc9c6e?s=96&d=mm&r=g\",\"contentUrl\":\"https:\\\/\\\/secure.gravatar.com\\\/avatar\\\/4adb372cadd43b4d4c57964dab95b0f69618bf960d131c4acf49d96d6bbc9c6e?s=96&d=mm&r=g\",\"caption\":\"UShopWell\"},\"url\":\"https:\\\/\\\/ushopwell.com\\\/ublog\\\/author\\\/kburnettu\\\/\"}]}<\/script>\n<!-- \/ Yoast SEO plugin. -->","yoast_head_json":{"title":"#0039 JavaScript Interview Questions | #coding #javascript - UshopWell.com","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:\/\/ushopwell.com\/ublog\/0039-javascript-interview-questions-coding-javascript\/","og_locale":"en_US","og_type":"article","og_title":"#0039 JavaScript Interview Questions | #coding #javascript - UshopWell.com","og_description":"0039 JavaScript Interview Questions | #coding #javascript In this video, We have a function showMessage is declared inside an if block and called outside it. We get undefined because the function&#8217;s body is only attached to the outer scope if the if condition is true. Since the condition is 0, the block is never executed, and showMessage is not defined in the outer scope. Changing the condition to 1 will...","og_url":"https:\/\/ushopwell.com\/ublog\/0039-javascript-interview-questions-coding-javascript\/","og_site_name":"UshopWell.com","article_published_time":"2024-08-19T11:30:29+00:00","og_image":[{"width":480,"height":360,"url":"https:\/\/ushopwell.com\/ublog\/wp-content\/uploads\/2024\/08\/60680\/0039-javascript-interview-questions-coding-javascript.jpg","type":"image\/jpeg"}],"author":"UShopWell","twitter_card":"summary_large_image","twitter_misc":{"Written by":"UShopWell","Est. reading time":"1 minute"},"schema":{"@context":"https:\/\/schema.org","@graph":[{"@type":"Article","@id":"https:\/\/ushopwell.com\/ublog\/0039-javascript-interview-questions-coding-javascript\/#article","isPartOf":{"@id":"https:\/\/ushopwell.com\/ublog\/0039-javascript-interview-questions-coding-javascript\/"},"author":{"name":"UShopWell","@id":"https:\/\/ushopwell.com\/ublog\/#\/schema\/person\/6fd1f9e0ff932e534c86c70d5acff0fc"},"headline":"#0039 JavaScript Interview Questions | #coding #javascript","datePublished":"2024-08-19T11:30:29+00:00","mainEntityOfPage":{"@id":"https:\/\/ushopwell.com\/ublog\/0039-javascript-interview-questions-coding-javascript\/"},"wordCount":180,"commentCount":0,"publisher":{"@id":"https:\/\/ushopwell.com\/ublog\/#organization"},"image":{"@id":"https:\/\/ushopwell.com\/ublog\/0039-javascript-interview-questions-coding-javascript\/#primaryimage"},"thumbnailUrl":"https:\/\/ushopwell.com\/ublog\/wp-content\/uploads\/2024\/08\/60680\/0039-javascript-interview-questions-coding-javascript.jpg","inLanguage":"en-US","potentialAction":[{"@type":"CommentAction","name":"Comment","target":["https:\/\/ushopwell.com\/ublog\/0039-javascript-interview-questions-coding-javascript\/#respond"]}]},{"@type":"WebPage","@id":"https:\/\/ushopwell.com\/ublog\/0039-javascript-interview-questions-coding-javascript\/","url":"https:\/\/ushopwell.com\/ublog\/0039-javascript-interview-questions-coding-javascript\/","name":"#0039 JavaScript Interview Questions | #coding #javascript - UshopWell.com","isPartOf":{"@id":"https:\/\/ushopwell.com\/ublog\/#website"},"primaryImageOfPage":{"@id":"https:\/\/ushopwell.com\/ublog\/0039-javascript-interview-questions-coding-javascript\/#primaryimage"},"image":{"@id":"https:\/\/ushopwell.com\/ublog\/0039-javascript-interview-questions-coding-javascript\/#primaryimage"},"thumbnailUrl":"https:\/\/ushopwell.com\/ublog\/wp-content\/uploads\/2024\/08\/60680\/0039-javascript-interview-questions-coding-javascript.jpg","datePublished":"2024-08-19T11:30:29+00:00","breadcrumb":{"@id":"https:\/\/ushopwell.com\/ublog\/0039-javascript-interview-questions-coding-javascript\/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https:\/\/ushopwell.com\/ublog\/0039-javascript-interview-questions-coding-javascript\/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/ushopwell.com\/ublog\/0039-javascript-interview-questions-coding-javascript\/#primaryimage","url":"https:\/\/ushopwell.com\/ublog\/wp-content\/uploads\/2024\/08\/60680\/0039-javascript-interview-questions-coding-javascript.jpg","contentUrl":"https:\/\/ushopwell.com\/ublog\/wp-content\/uploads\/2024\/08\/60680\/0039-javascript-interview-questions-coding-javascript.jpg","width":480,"height":360,"caption":"#0039 JavaScript Interview Questions | #coding #javascript"},{"@type":"BreadcrumbList","@id":"https:\/\/ushopwell.com\/ublog\/0039-javascript-interview-questions-coding-javascript\/#breadcrumb","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https:\/\/ushopwell.com\/ublog\/"},{"@type":"ListItem","position":2,"name":"#0039 JavaScript Interview Questions | #coding #javascript"}]},{"@type":"WebSite","@id":"https:\/\/ushopwell.com\/ublog\/#website","url":"https:\/\/ushopwell.com\/ublog\/","name":"UshopWell.com","description":"The Premiere Online Marketplace","publisher":{"@id":"https:\/\/ushopwell.com\/ublog\/#organization"},"potentialAction":[{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https:\/\/ushopwell.com\/ublog\/?s={search_term_string}"},"query-input":{"@type":"PropertyValueSpecification","valueRequired":true,"valueName":"search_term_string"}}],"inLanguage":"en-US"},{"@type":"Organization","@id":"https:\/\/ushopwell.com\/ublog\/#organization","name":"UshopWell","url":"https:\/\/ushopwell.com\/ublog\/","logo":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/ushopwell.com\/ublog\/#\/schema\/logo\/image\/","url":"https:\/\/ushopwell.com\/ublog\/wp-content\/uploads\/2018\/01\/pandaSwea.png","contentUrl":"https:\/\/ushopwell.com\/ublog\/wp-content\/uploads\/2018\/01\/pandaSwea.png","width":365,"height":359,"caption":"UshopWell"},"image":{"@id":"https:\/\/ushopwell.com\/ublog\/#\/schema\/logo\/image\/"}},{"@type":"Person","@id":"https:\/\/ushopwell.com\/ublog\/#\/schema\/person\/6fd1f9e0ff932e534c86c70d5acff0fc","name":"UShopWell","image":{"@type":"ImageObject","inLanguage":"en-US","@id":"https:\/\/secure.gravatar.com\/avatar\/4adb372cadd43b4d4c57964dab95b0f69618bf960d131c4acf49d96d6bbc9c6e?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/4adb372cadd43b4d4c57964dab95b0f69618bf960d131c4acf49d96d6bbc9c6e?s=96&d=mm&r=g","contentUrl":"https:\/\/secure.gravatar.com\/avatar\/4adb372cadd43b4d4c57964dab95b0f69618bf960d131c4acf49d96d6bbc9c6e?s=96&d=mm&r=g","caption":"UShopWell"},"url":"https:\/\/ushopwell.com\/ublog\/author\/kburnettu\/"}]}},"_links":{"self":[{"href":"https:\/\/ushopwell.com\/ublog\/wp-json\/wp\/v2\/posts\/60680","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/ushopwell.com\/ublog\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/ushopwell.com\/ublog\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/ushopwell.com\/ublog\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/ushopwell.com\/ublog\/wp-json\/wp\/v2\/comments?post=60680"}],"version-history":[{"count":0,"href":"https:\/\/ushopwell.com\/ublog\/wp-json\/wp\/v2\/posts\/60680\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/ushopwell.com\/ublog\/wp-json\/wp\/v2\/media\/60681"}],"wp:attachment":[{"href":"https:\/\/ushopwell.com\/ublog\/wp-json\/wp\/v2\/media?parent=60680"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/ushopwell.com\/ublog\/wp-json\/wp\/v2\/categories?post=60680"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/ushopwell.com\/ublog\/wp-json\/wp\/v2\/tags?post=60680"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}