{"id":197870,"date":"2025-09-03T09:06:31","date_gmt":"2025-09-03T08:06:31","guid":{"rendered":"https:\/\/datascientest.com\/en\/?p=197870"},"modified":"2025-09-03T09:06:32","modified_gmt":"2025-09-03T08:06:32","slug":"typescript-what-is-this-language","status":"publish","type":"post","link":"https:\/\/datascientest.com\/en\/typescript-what-is-this-language","title":{"rendered":"TypeScript: What is this language? What is the connection with JavaScript?"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-post\" data-elementor-id=\"197870\" class=\"elementor elementor-197870\" data-elementor-post-type=\"post\">\n\t\t\t\t\t\t\t<div class=\"elementor-element elementor-element-f2b0007 e-flex e-con-boxed e-con\" data-id=\"f2b0007\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-713d7fe elementor-widget elementor-widget-text-editor\" data-id=\"713d7fe\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-text-editor.elementor-drop-cap-view-stacked .elementor-drop-cap{background-color:#69727d;color:#fff}.elementor-widget-text-editor.elementor-drop-cap-view-framed .elementor-drop-cap{color:#69727d;border:3px solid;background-color:transparent}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap{margin-top:8px}.elementor-widget-text-editor:not(.elementor-drop-cap-view-default) .elementor-drop-cap-letter{width:1em;height:1em}.elementor-widget-text-editor .elementor-drop-cap{float:left;text-align:center;line-height:1;font-size:50px}.elementor-widget-text-editor .elementor-drop-cap-letter{display:inline-block}<\/style>\t\t\t\t<p><b>In today&#8217;s web and application development landscape, JavaScript holds the top spot. However, its dynamic typing, while flexible, can lead to complexities and subtle errors, particularly in large-scale projects. This is where TypeScript comes in\u2014a technology that has fundamentally transformed how developers design and maintain their code.<\/b><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-9afe323 elementor-widget elementor-widget-text-editor\" data-id=\"9afe323\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Developed and maintained by <\/span><b>Microsoft<\/b><span style=\"font-weight: 400;\">, TypeScript has positioned itself as a crucial option for teams aiming to <\/span><b>enhance the quality and robustness of their applications<\/b><span style=\"font-weight: 400;\">.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-350a70b e-flex e-con-boxed e-con\" data-id=\"350a70b\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2db265d elementor-widget elementor-widget-heading\" data-id=\"2db265d\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-heading-title{padding:0;margin:0;line-height:1}.elementor-widget-heading .elementor-heading-title[class*=elementor-size-]>a{color:inherit;font-size:inherit;line-height:inherit}.elementor-widget-heading .elementor-heading-title.elementor-size-small{font-size:15px}.elementor-widget-heading .elementor-heading-title.elementor-size-medium{font-size:19px}.elementor-widget-heading .elementor-heading-title.elementor-size-large{font-size:29px}.elementor-widget-heading .elementor-heading-title.elementor-size-xl{font-size:39px}.elementor-widget-heading .elementor-heading-title.elementor-size-xxl{font-size:59px}<\/style><h2 class=\"elementor-heading-title elementor-size-xl\">What is TypeScript and why is it gaining popularity?<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-f41c5bd elementor-widget elementor-widget-text-editor\" data-id=\"f41c5bd\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">TypeScript is a <\/span><b>superset of JavaScript<\/b><span style=\"font-weight: 400;\">, meaning all valid JavaScript code is also valid TypeScript code. Its key value proposition is the introduction of optional static typing. Whereas JavaScript checks types at runtime (<\/span><b>dynamic typing<\/b><span style=\"font-weight: 400;\">), TypeScript allows for type checks during compilation, or more precisely, during transpilation. This process is managed by the <\/span><b>TypeScript compiler (tsc)<\/b><span style=\"font-weight: 400;\">, which analyzes TypeScript code, checks types, and transforms it into standard <a href=\"https:\/\/datascientest.com\/en\/javascript-unveiled-a-comprehensive-guide-to-the-language-of-the-web\">JavaScript<\/a> code executable by any browser or Node.js environment.<\/span><\/p><p><span style=\"font-weight: 400;\">The primary benefit of this &#8220;type checking&#8221; is the early identification of errors. Many common mistakes, like typos in property names, calling functions with incorrect argument types, or unexpectedly using \u201c<\/span><b>null<\/b><span style=\"font-weight: 400;\">\u201d or \u201c<\/span><b>undefined<\/b><span style=\"font-weight: 400;\">,\u201d can be caught by the compiler before the code even runs. This results in a <\/span><b>faster development cycle<\/b><span style=\"font-weight: 400;\">, less time-consuming debugging, and a more reliable codebase overall.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-cf02262 elementor-widget elementor-widget-image\" data-id=\"cf02262\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<style>\/*! elementor - v3.15.0 - 02-08-2023 *\/\n.elementor-widget-image{text-align:center}.elementor-widget-image a{display:inline-block}.elementor-widget-image a img[src$=\".svg\"]{width:48px}.elementor-widget-image img{vertical-align:middle;display:inline-block}<\/style>\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1536\" height=\"1024\" src=\"https:\/\/datascientest.com\/en\/files\/2025\/07\/output1-39-2.png\" class=\"attachment-full size-full wp-image-197873\" alt=\"\" srcset=\"https:\/\/datascientest.com\/en\/files\/2025\/07\/output1-39-2.png 1536w, https:\/\/datascientest.com\/en\/files\/2025\/07\/output1-39-2-300x200.png 300w, https:\/\/datascientest.com\/en\/files\/2025\/07\/output1-39-2-1024x683.png 1024w, https:\/\/datascientest.com\/en\/files\/2025\/07\/output1-39-2-768x512.png 768w\" sizes=\"(max-width: 1536px) 100vw, 1536px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-707c009 elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"707c009\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/datascientest.com\/en\/data-courses\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">More about TypeScript<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-45d9662 e-flex e-con-boxed e-con\" data-id=\"45d9662\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-fd2b7b3 elementor-widget elementor-widget-heading\" data-id=\"fd2b7b3\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-xl\">The tangible benefits of adopting TypeScript<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8840d86 elementor-widget elementor-widget-text-editor\" data-id=\"8840d86\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Beyond just error detection, TypeScript provides numerous significant advantages for developers and projects. Firstly, <\/span><b>code clarity<\/b><span style=\"font-weight: 400;\"> is greatly enhanced. By explicitly defining data types for variables, function parameters, and return values, <\/span><b>the code becomes self-documenting<\/b><span style=\"font-weight: 400;\">, making it easier for teams to understand and maintain, especially for long-term projects or those with many contributors.<\/span><\/p><p><span style=\"font-weight: 400;\">Secondly, the <\/span><b>development experience (DX)<\/b><span style=\"font-weight: 400;\"> is greatly enriched. Modern <a href=\"https:\/\/datascientest.com\/en\/unpacking-the-power-of-integrated-development-environments-ides\">integrated development environments (IDEs)<\/a>, such as <a href=\"https:\/\/datascientest.com\/en\/visual-studio-code-vscode-a-versatile-code-editor-for-beginners-and-advanced-programmers-alike\">Visual Studio Code<\/a> (which has native TypeScript integration), use type information to provide <\/span><b>smarter autocompletion<\/b><span style=\"font-weight: 400;\">, <\/span><b>easier code navigation<\/b><span style=\"font-weight: 400;\">, and <\/span><b>safer refactoring capabilities<\/b><span style=\"font-weight: 400;\">. This proactive assistance allows developers to write TypeScript code more quickly and confidently.<\/span><\/p><p><span style=\"font-weight: 400;\">Thirdly, TypeScript facilitates scaling applications. Types act as contracts within the code, ensuring that various parts of an application interact predictably. This is especially valuable in complex architectures such as microservices or when <\/span><a href=\"https:\/\/datascientest.com\/en\/all-about-d3-js\"><span style=\"font-weight: 400;\">integrating third-party libraries<\/span><\/a><span style=\"font-weight: 400;\">. Additionally, TypeScript enables you to use the latest JavaScript features (<\/span><b>ECMAScript<\/b><span style=\"font-weight: 400;\">) while generating code that is compatible with older environments, thanks to the target configuration of the TypeScript compiler.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-0973aef elementor-widget elementor-widget-image\" data-id=\"0973aef\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1536\" height=\"1024\" src=\"https:\/\/datascientest.com\/en\/files\/2025\/07\/output1-36-1.png\" class=\"attachment-full size-full wp-image-197874\" alt=\"\" srcset=\"https:\/\/datascientest.com\/en\/files\/2025\/07\/output1-36-1.png 1536w, https:\/\/datascientest.com\/en\/files\/2025\/07\/output1-36-1-300x200.png 300w, https:\/\/datascientest.com\/en\/files\/2025\/07\/output1-36-1-1024x683.png 1024w, https:\/\/datascientest.com\/en\/files\/2025\/07\/output1-36-1-768x512.png 768w\" sizes=\"(max-width: 1536px) 100vw, 1536px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-3fe52d7 elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"3fe52d7\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/datascientest.com\/en\/data-courses\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Developing with TypeScript<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-64fb0bb e-flex e-con-boxed e-con\" data-id=\"64fb0bb\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-2405898 elementor-widget elementor-widget-heading\" data-id=\"2405898\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<h2 class=\"elementor-heading-title elementor-size-xl\">How does TypeScript integrate with modern tools and frameworks?<\/h2>\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-68c50a5 elementor-widget elementor-widget-text-editor\" data-id=\"68c50a5\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">TypeScript seamlessly integrates into the existing JavaScript ecosystem. It is not an isolated technology but a tool that enhances the stacks developers already use. For example:<\/span><\/p><ul><li style=\"font-weight: 400;\" aria-level=\"1\"><b>Front-End frameworks:<\/b><span style=\"font-weight: 400;\"> Major frameworks like Angular are written natively in TypeScript. React and Vue.js also benefit from excellent TypeScript support, enabling the creation of robust and well-typed user interfaces. The combination of these frameworks with TypeScript has become a de facto standard for many modern web applications (e.g., Forbes, Upwork, Airbnb, Discord, among others).<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><b>Back-End with Node.js:<\/b><span style=\"font-weight: 400;\"> TypeScript is increasingly utilized for server-side development with Node.js. It brings the same rigor and productivity benefits to the back-end as it does to the front-end, facilitating the construction of solid APIs and business logic. Frameworks like NestJS are built around TypeScript.<\/span><\/li><li style=\"font-weight: 400;\" aria-level=\"1\"><b>Data ecosystems and full-stack projects:<\/b><span style=\"font-weight: 400;\"> By adopting TypeScript across the entire technical stack (<a href=\"https:\/\/datascientest.com\/en\/front-end-what-are-the-skills-and-tools\">front-end<\/a>, <a href=\"https:\/\/datascientest.com\/en\/all-about-back-end\">back-end<\/a>, and even for build or infrastructure scripts), teams can achieve end-to-end consistency and type safety, simplifying data flow management and reducing integration errors.<\/span><\/li><\/ul>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-d6d3573 elementor-widget elementor-widget-text-editor\" data-id=\"d6d3573\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">Adopting TypeScript can be a gradual process. It&#8217;s possible to introduce TypeScript file by file into an existing <\/span><b>JavaScript project<\/b><span style=\"font-weight: 400;\">, allowing for a smooth transition and gradual assessment of its benefits.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-fc68a48 elementor-widget elementor-widget-image\" data-id=\"fc68a48\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" width=\"1536\" height=\"1024\" src=\"https:\/\/datascientest.com\/en\/files\/2025\/07\/output1-31-1.png\" class=\"attachment-full size-full wp-image-197825\" alt=\"\" srcset=\"https:\/\/datascientest.com\/en\/files\/2025\/07\/output1-31-1.png 1536w, https:\/\/datascientest.com\/en\/files\/2025\/07\/output1-31-1-300x200.png 300w, https:\/\/datascientest.com\/en\/files\/2025\/07\/output1-31-1-1024x683.png 1024w, https:\/\/datascientest.com\/en\/files\/2025\/07\/output1-31-1-768x512.png 768w\" sizes=\"(max-width: 1536px) 100vw, 1536px\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-6a88128 elementor-widget elementor-widget-text-editor\" data-id=\"6a88128\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t<p><span style=\"font-weight: 400;\">In conclusion, TypeScript represents far <\/span><b>more than just an extension of JavaScript<\/b><span style=\"font-weight: 400;\">. It is a strategic investment in code quality, developer productivity, and the sustainability of software projects. The <\/span><b>integration of static typing by TypeScript within JavaScript<\/b><span style=\"font-weight: 400;\"> transforms the way applications are designed. The <\/span><b>TypeScript compiler and its ecosystem<\/b><span style=\"font-weight: 400;\"> thus provide a solid foundation for developing software solutions that are both more complex, more robust, and easier to maintain, effectively addressing the challenges of digital transformation.<\/span><\/p>\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-8721762 elementor-align-center button-principale elementor-widget elementor-widget-button\" data-id=\"8721762\" data-element_type=\"widget\" data-widget_type=\"button.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<div class=\"elementor-button-wrapper\">\n\t\t\t<a class=\"elementor-button elementor-button-link elementor-size-sm elementor-animation-grow\" href=\"https:\/\/datascientest.com\/en\/data-courses\">\n\t\t\t\t\t\t<span class=\"elementor-button-content-wrapper\">\n\t\t\t\t\t\t<span class=\"elementor-button-text\">Become a full-stack developer<\/span>\n\t\t<\/span>\n\t\t\t\t\t<\/a>\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t<div class=\"elementor-element elementor-element-63a079b e-flex e-con-boxed e-con\" data-id=\"63a079b\" data-element_type=\"container\" data-settings=\"{&quot;content_width&quot;:&quot;boxed&quot;}\">\n\t\t\t\t\t<div class=\"e-con-inner\">\n\t\t\t\t<div class=\"elementor-element elementor-element-b6535f4 elementor-widget elementor-widget-html\" data-id=\"b6535f4\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t<script type=\"application\/ld+json\">\r\n{\r\n  \"@context\": \"https:\/\/schema.org\",\r\n  \"@type\": \"FAQPage\",\r\n  \"mainEntity\": [\r\n    {\r\n      \"@type\": \"Question\",\r\n      \"name\": \"What is TypeScript and why is it gaining popularity?\",\r\n      \"acceptedAnswer\": {\r\n        \"@type\": \"Answer\",\r\n        \"text\": \"TypeScript is a superset of JavaScript that introduces static typing, allowing type checks during compilation to detect errors early and improve code quality.\"\r\n      }\r\n    },\r\n    {\r\n      \"@type\": \"Question\",\r\n      \"name\": \"The tangible benefits of adopting TypeScript\",\r\n      \"acceptedAnswer\": {\r\n        \"@type\": \"Answer\",\r\n        \"text\": \"TypeScript enhances code clarity, boosts developer experience with better IDE support, and improves scalability through predictable interactions and modern JavaScript compatibility.\"\r\n      }\r\n    },\r\n    {\r\n      \"@type\": \"Question\",\r\n      \"name\": \"How does TypeScript integrate with modern tools and frameworks?\",\r\n      \"acceptedAnswer\": {\r\n        \"@type\": \"Answer\",\r\n        \"text\": \"TypeScript integrates well with frameworks like Angular, React, Vue.js, and Node.js, enabling full-stack consistency and safer, more maintainable applications.\"\r\n      }\r\n    }\r\n  ]\r\n}\r\n<\/script>\r\n\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>In today&#8217;s web and application development landscape, JavaScript holds the top spot. However, its dynamic typing, while flexible, can lead to complexities and subtle errors, particularly in large-scale projects. This is where TypeScript comes in\u2014a technology that has fundamentally transformed how developers design and maintain their code. Developed and maintained by Microsoft, TypeScript has positioned [&hellip;]<\/p>\n","protected":false},"author":47,"featured_media":197871,"comment_status":"open","ping_status":"open","sticky":false,"template":"elementor_theme","format":"standard","meta":{"content-type":"","inline_featured_image":false},"categories":[2421],"tags":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v21.7 (Yoast SEO v21.7) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>TypeScript: What is this language? What is the connection with JavaScript?<\/title>\n<meta name=\"description\" content=\"Discover how TypeScript enhances JavaScript with static typing, to code more robust, reliable, and scalable applications.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/datascientest.com\/en\/typescript-what-is-this-language\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"TypeScript: What is this language? What is the connection with JavaScript?\" \/>\n<meta property=\"og:description\" content=\"In today&#039;s web and application development landscape, JavaScript holds the top spot. 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