--- title: Astro Crash Course #5 - Templating | daily.dev description: A beginner-friendly walkthrough of Astro component templating, covering the front matter section for writing JavaScript/TypeScript that runs only at build time... canonical: https://daily.dev/posts/astro-crash-course-5---templating-2inpdumyt twitter:card: summary_large_image twitter:site: @dailydotdev og:type: website og:site_name: daily.dev og:title: Astro Crash Course #5 - Templating | daily.dev og:description: A beginner-friendly walkthrough of Astro component templating, covering the front matter section for writing JavaScript/TypeScript that runs only at build time... og:url: https://daily.dev/posts/astro-crash-course-5---templating-2inpdumyt og:image: https://api.daily.dev/og/posts/2iNPDUMYt.png og:image:alt: Astro Crash Course #5 - Templating og:image:width: 1200 og:image:height: 630 og:locale: en --- > ## Documentation Index > Fetch the complete documentation index at: https://daily.dev/llms.txt > Use this file to discover all available pages before exploring further. # Astro Crash Course #5 - Templating **[Net Ninja](https://daily.dev/sources/netninja)** · 7 min read · 2 upvotes · 0 comments ## Summary A beginner-friendly walkthrough of Astro component templating, covering the front matter section for writing JavaScript/TypeScript that runs only at build time or on the server. Demonstrates defining variables, using objects, and outputting values in templates with curly brace syntax. Also covers conditional rendering using logical AND expressions to show or hide content based on whether a user is logged in, with a simulated random user function to illustrate the pattern during development. ## Full article daily.dev links to this article rather than hosting it. Read it at the original source: --- Tags: [#webdev](https://daily.dev/tags/webdev), [#javascript](https://daily.dev/tags/javascript), [#astro](https://daily.dev/tags/astro) [View this post on daily.dev](https://daily.dev/posts/astro-crash-course-5---templating-2inpdumyt) ```json {"@context":"https://schema.org","@graph":[{"@type":"Organization","@id":"https://daily.dev/#organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180},"sameAs":["https://twitter.com/dailydotdev","https://github.com/dailydotdev","https://www.linkedin.com/company/daily-dev-ltd"]},{"@type":"WebSite","@id":"https://daily.dev/#website","url":"https://daily.dev","name":"daily.dev","publisher":{"@id":"https://daily.dev/#organization"},"potentialAction":{"@type":"SearchAction","target":{"@type":"EntryPoint","urlTemplate":"https://daily.dev/search?q={search_term_string}"},"query-input":"required name=search_term_string"}}]} {"@context":"https://schema.org","@type":"TechArticle","headline":"Astro Crash Course #5 - Templating","url":"https://daily.dev/posts/astro-crash-course-5---templating-2inpdumyt","mainEntityOfPage":{"@type":"WebPage","@id":"https://daily.dev/posts/astro-crash-course-5---templating-2inpdumyt"},"datePublished":"2026-03-31T08:09:33.006Z","dateModified":"2026-03-31T08:11:52.318Z","description":"A beginner-friendly walkthrough of Astro component templating, covering the front matter section for writing JavaScript/TypeScript that runs only at build time...","image":"https://i.ytimg.com/vi/93WnK4cpwFk/sddefault.jpg","thumbnailUrl":"https://i.ytimg.com/vi/93WnK4cpwFk/sddefault.jpg","isAccessibleForFree":true,"articleSection":"Net Ninja","inLanguage":"en","publisher":{"@type":"Organization","name":"daily.dev","url":"https://daily.dev","logo":{"@type":"ImageObject","url":"https://daily.dev/apple-touch-icon.png","width":180,"height":180}},"author":{"@type":"Organization","name":"Net Ninja","logo":"https://media.daily.dev/image/upload/s--IXsAE5jo--/f_auto/v1718348103/logos/netninja","url":"https://daily.dev/sources/netninja"},"commentCount":0,"discussionUrl":"https://daily.dev/posts/astro-crash-course-5---templating-2inpdumyt","interactionStatistic":[{"@type":"InteractionCounter","interactionType":{"@type":"LikeAction"},"userInteractionCount":2},{"@type":"InteractionCounter","interactionType":{"@type":"CommentAction"},"userInteractionCount":0}],"keywords":"webdev,javascript,astro","timeRequired":"PT7M","video":{"@type":"VideoObject","name":"Astro Crash Course #5 - Templating","description":"A beginner-friendly walkthrough of Astro component templating, covering the front matter section for writing JavaScript/TypeScript that runs only at build time...","thumbnailUrl":"https://i.ytimg.com/vi/93WnK4cpwFk/sddefault.jpg","uploadDate":"2026-03-31T08:09:33.006Z","duration":"PT7M","url":"https://api.daily.dev/r/2iNPDUMYt","embedUrl":"https://www.youtube.com/embed/93WnK4cpwFk"}} {"@context":"https://schema.org","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"name":"Home","item":"https://daily.dev"},{"@type":"ListItem","position":2,"name":"Net Ninja","item":"https://daily.dev/sources/netninja"},{"@type":"ListItem","position":3,"name":"Astro Crash Course #5 - Templating"}]} ```