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The Basics of HTMLCommon HTML Elements and AttributesFirefox Developer ToolsMixing in CSSExercises: HTML and CSS BasicsCSS Basics and SelectorsExercises: Page DeploymentCommon CSS AttributesExercises: The DOMDeploying to GitHub PagesThe DOMMixing in JavaScriptKey Differences Between JavaScript and Python
JavaScript Basics
Exercises: Basic InteractivityIntroduction to JavaScript CallbacksManipulating the DOM with JavaScriptExercises: Basic Interactivity (2)JavaScript EventsExercise: Creating a StopwatchExercise: Image CarouselBuilding an Understanding of Execution Order and TimingJavaScript ScopeIntegrating JavaScript LibrariesThe State of JavaScriptPop Quiz!Template Literals and Conditional OperatorsExercises: Command Line and npmAnimationPromisesCommand Line BasicsIntroduction to Package ManagementIntroduction to WebpackExercises: Yes/No APIExercises: Yes/No (2)Live ShareKilobytes GambitThe Observer PatternModel-View-Controller (MVC)Exercises: React.jsUnderstanding Libraries vs. FrameworksExercises: React todoReact.JS BasicsAdding State to React Components with State HooksAccessing DOM Elements in React with RefsExercises: React todoNeat JavaScript Tricks: Destructuring AssignmentExercise: Todo with storageAn Introduction to TypeScriptStoring Data Client-SideNeat JavaScript Tricks: Short-Circuit ConditionalsExercise: Find the bugUser Inyerface :-PUser Inyerface (2)InternationalizationCharacter EncodingsThe Internationalization APII18n Strategies: Message TranslationInternationalization Beyond Message TranslationBrief Tips on AccessibilityAlternative Execution Environments

One platform to build and deploy the best data apps

Experiment and prototype by building visualizations in live JavaScript notebooks. Collaborate with your team and decide which concepts to build out.
Use Observable Framework to build data apps locally. Use data loaders to build in any language or library, including Python, SQL, and R.
Seamlessly deploy to Observable. Test before you ship, use automatic deploy-on-commit, and ensure your projects are always up-to-date.
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