![]() ![]() Let's talk a bit about scope - a very important concept when dealing with functions. In our random-canvas-circles.html example (see also the full source code) from our loops article, we included a custom draw() function that looked like this: Anytime you saw a custom name with parentheses straight after it, you were using a custom function. You've also seen a lot of custom functions in the course so far - functions defined in your code, not inside the browser. You can check the full list of the built-in functions, as well as the built-in objects and their corresponding methods here. The built-in code we've made use of so far come in both forms: functions and methods. For now, we just wanted to clear up any possible confusion of method versus function - you are likely to meet both terms as you look at the available related resources across the Web. You don't need to learn about the inner workings of structured JavaScript objects yet - you can wait until our later module that will teach you all about the inner workings of objects, and how to create your own. Solve common problems in your JavaScript codeįunctions that are part of objects are called methods.Express Tutorial Part 7: Deploying to production.Express Tutorial Part 6: Working with forms.Express Tutorial Part 5: Displaying library data.Express Tutorial Part 4: Routes and controllers.Express Tutorial Part 3: Using a Database (with Mongoose).Express Tutorial Part 2: Creating a skeleton website.Express Tutorial: The Local Library website.Setting up a Node development environment.Express web framework (Node.js/JavaScript).Express Web Framework (node.js/JavaScript).Django Tutorial Part 11: Deploying Django to production. ![]() Django Tutorial Part 10: Testing a Django web application.Django Tutorial Part 9: Working with forms.Django Tutorial Part 8: User authentication and permissions.Django Tutorial Part 7: Sessions framework.Django Tutorial Part 6: Generic list and detail views.Django Tutorial Part 5: Creating our home page.Django Tutorial Part 4: Django admin site.Django Tutorial Part 2: Creating a skeleton website.Django Tutorial: The Local Library website.Setting up a Django development environment.Server-side website programming first steps.Setting up your own test automation environment.Building Angular applications and further resources.Advanced Svelte: Reactivity, lifecycle, accessibility.Dynamic behavior in Svelte: working with variables and props.Vue conditional rendering: editing existing todos.Adding a new todo form: Vue events, methods, and models.Ember Interactivity: Footer functionality, conditional rendering.Ember interactivity: Events, classes and state.Ember app structure and componentization.React interactivity: Editing, filtering, conditional rendering.Understanding client-side web development tools.MathML - Writing mathematics with MathML.Performance - Making websites fast and responsive.Assessment: Accessibility troubleshooting.CSS and JavaScript accessibility best practices.Accessibility - Make the web usable by everyone.CSS property compatibility table for form controls.Adding features to our bouncing balls demo.Making decisions in your code - conditionals.Basic math in JavaScript - numbers and operators.Storing the information you need - Variables.What went wrong? Troubleshooting JavaScript.JavaScript - Dynamic client-side scripting.Typesetting a community school homepage.HTML table advanced features and accessibility.From object to iframe - other embedding technologies.The question is, which of those classes should Moodle instantiate? Even if Moodle managed to figure out a way to allow all 3 of those plugins to override the same renderer at the same time, it isn't clear how decisions would be made about which plugin should 'win' if all of them override the same function. So now you have 3 plugins all extending the same class (possibly overriding the same functions, maybe not). theme_mytheme creates a renderer called theme_mytheme_mod_forum_renderer, extending mod_forum_renderer.local_pluginb creates a renderer called local_pluginb_mod_forum_renderer, extending mod_forum_renderer.local_plugina creates a renderer called local_plugina_mod_forum_renderer, extending mod_forum_renderer.Now imagine we allow local plugins to override renderers. When we instantiate the renderer, we end up with an instance of theme_mytheme_mod_forum_renderer.theme_mytheme can create a renderer called theme_mytheme_mod_forum_renderer which extends mod_forum_renderer.Local plugins cannot override renderers and I don't think they ever will be able to do so, as conceptually it's pretty much impossible to do.Ĭurrent setup (using mod_forum_renderer as an example): ![]()
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