{"id":678,"date":"2015-10-28T20:25:04","date_gmt":"2015-10-28T20:25:04","guid":{"rendered":"https:\/\/ionic.io\/blog\/?p=678"},"modified":"2017-01-09T06:49:41","modified_gmt":"2017-01-09T06:49:41","slug":"ionic-and-typescript-part-2","status":"publish","type":"post","link":"https:\/\/ionic.io\/blog\/ionic-and-typescript-part-2","title":{"rendered":"Ionic and TypeScript: Part 2"},"content":{"rendered":"<p><a href=\"https:\/\/ionic.io\/blog\/ionic-and-typescript-part-1\/\">In our most recent screencast<\/a>, we talked about future-proofing your app. We converted our JavaScript to TypeScript and created a simple build step to compile everything back. Now, let&#8217;s look at how we can use TypeScript&#8217;s static types to annotate our code. We&#8217;ll add definition files for Ionic and start getting code completion in our editor.<\/p>\n<div class=\"video-container\">\n              <iframe data-src=\"https:\/\/www.youtube.com\/embed\/H6NxUieUjyM\"frameborder=\"0\" allowfullscreen src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" data-load-mode=\"1\"><\/iframe>\n            <\/div>\n<p><!--more--><\/p>\n<p><\/p>\n<h3>Adding TSD<\/h3>\n<pre><code>$ sudo npm install -g tsd\n$ tsd install ionic cordova --save\n<\/code><\/pre>\n<h3>Reference the definition files<\/h3>\n<p>controller.ts<\/p>\n<pre><code class=\"javascript\">\/\/\/ &lt;reference path=&quot;..\/typings\/tsd.d.ts&quot; \/&gt;\n<\/code><\/pre>\n<h3>Additional Notes<\/h3>\n<ul>\n<li><a href=\"http:\/\/definitelytyped.org\/tsd\/\">TSD Manager<\/a><\/li>\n<li><a href=\"https:\/\/github.com\/borisyankov\/DefinitelyTyped\">Definitely Typed Main Repo<\/a><\/li>\n<\/ul>\n<h3>Follow up videos<\/h3>\n<p><a href=\"https:\/\/ionic.io\/blog\/ionic-and-typescript-part-1\/\">Ionic and TypeScript Part 1<\/a><\/p>\n<p><a href=\"https:\/\/ionic.io\/blog\/ionic-and-typescript-part-3\/\">Ionic and TypeScript Part 3<\/a><\/p>\n<p><a href=\"https:\/\/ionic.io\/blog\/ionic-and-typescript-part-4\/\">Ionic and TypeScript Part 4<\/a><\/p>\n<p>In my <a href=\"https:\/\/ionic.io\/blog\/ionic-and-typescript-part-3\/\">next post<\/a> we&#8217;ll walk through converting our controllers to something more class like.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>In our most recent screencast, we talked about future-proofing your app. We converted our JavaScript to TypeScript and created a simple build step to compile everything back. Now, let&#8217;s look at how we can use TypeScript&#8217;s static types to annotate our code. We&#8217;ll add definition files for Ionic and start getting code completion in our [&hellip;]<\/p>\n","protected":false},"author":5,"featured_media":0,"comment_status":"open","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"publish_to_discourse":"","publish_post_category":"","wpdc_auto_publish_overridden":"","wpdc_topic_tags":"","wpdc_pin_topic":"","wpdc_pin_until":"","discourse_post_id":"","discourse_permalink":"","wpdc_publishing_response":"","wpdc_publishing_error":"","_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[1],"tags":[3],"class_list":["post-678","post","type-post","status-publish","format-standard","hentry","category-all","tag-ionic"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v23.0 (Yoast SEO v23.0) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Ionic and TypeScript: Part 2 - Ionic Blog<\/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:\/\/ionic.io\/blog\/ionic-and-typescript-part-2\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Ionic and TypeScript: Part 2\" \/>\n<meta property=\"og:description\" content=\"In our most recent screencast, we talked about future-proofing your app. We converted our JavaScript to TypeScript and created a simple build step to compile everything back. 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