In real life, we're often working with arrays, rather than strings. In this episode, you'll learn how to use the
v-for directive to filter through a list of items and render them on the page. We'll also continue our review of reactivity, in the process.
In the previous episode, we defaulted to traditional event listeners and DOM traversal. Luckily, though, there's a simpler way with Vue. Let's review the
v-on directive for registering event listeners.
We haven't yet reviewed attribute binding in Vue. This is a key concept to understand, so make sure that you pay attention over the next few minutes. We can use the
v-bind directive to bind a property in our model to any element attribute.
Let's move on to our next practical component exercise. A traditional modal box provides some key learning points. In particular, we're going to learn how to communicate between components. What happens if one Vue instance or component needs to be notified when a particular action takes place? How might we broadcast such things?
Let's review one more practical component exercise, before moving on to new topics. Let's re-create the common tabs feature that you've seen on so many websites. This will give us a number of interesting techniques to review.
View the source for this episode on GitHub.
So far, we've only reviewed default component slots. Or, in other words, "take this bit of content, and insert it right there, as designated by the
slot tags. But what about when we require more control? A modal component is a perfect example of this. If you want to slot a header section in one place, and a footer section in another, named slots are exactly what you need.
View the source code for this example on GitHub.
inline-templateattribute to nest your template directly in your HTML file.
Let's begin focusing on structure, and how you'll build actual applications with Vue. That means we're ready to learn both Webpack and vue-cli. I will warn you ahead of time: this can be a little confusing. But just stick with me, and we'll iron out all the kinks as best as we can.
As an aside, if you use Laravel, you'll be happy to know that the framework offers some facilities to make this whole process even simpler. We'll review that soon.
$.ajaxwill do the trick. Want a native option? Consider the fetch API (just don't forget to include a polyfill for older browsers). Or, maybe a general purpose library will do the trick? In this lesson, we'll review Axios: a clean and simple HTTP request API that you can be integrated into any project within seconds.
Let's review some techniques that we might implement to DRY up our form interactions. If you've ever noticed yourself writing the same exact code, over and over, for each form, then extracting a
Form class may be exactly what you need. Let's get started with part one of this two-part series.
Now that we have our validation error handling in place, we can move on to extracting a dedicated
Form class. This class can be responsible for resetting itself, submitting the AJAX request to our server, and more. Ready to dig in?
Once you finished this lesson, it's over to you. How might you expand these two classes two simplify your form interaction even further? Get started, and then let us know what you came up with in the comments.
The completed source code for this lesson is available on GitHub.
Let's take one more episode to refactor our code and address some community questions from the previous episode. Specifically, we'll update the
Form class to return a
Promise when submitted, we'll create a few AJAX helper methods, and, lastly, we'll refactor two methods to improve clarity. Ready?
You've learned a bit about vue-loader already; however, for learning purposes, let's build up a Webpack configuration file from scratch, so that we can begin extracting and importing modules. This will give you a solid review of the fundamentals, while also providing an opportunity to review just how powerful (yet initially confusing) all this stuff can be. Don't worry: in the next episode, I'll show you some options to simplify new projects that use Webpack.
You'll surely come across instances in your own projects, where you'd like to wrap a form input within a custom component. This way, you can have a single place to attach all custom sanitization, validation, and behavior. However, in the process, you'll also find that the useful
v-model directive no longer works the way it usually does.
In this episode, we'll learn exactly what Vue's
v-model does, and then review how to make it work on any custom component. View the demo for this lesson on GitHub.
As a workflow exercise, over the next few episodes, we'll review some essential topics related to building a full SPA with Vue 2. First up, we should discuss client-side routing, and how that fits into Vue. As always, we'll start entirely from scratch, and build up our project.
View the source code for this episode on GitHub.
Statusmodel, and its associated data. Then, once we register the necessary route endpoint, we can return this data as JSON. This way, Vue and Axios can easily fetch the data they require from our server.
Errorsclasses from the Object-Oriented Forms episodes, and then update our Laravel backend code.
Scoped slots allows us to treat any given Vue component slot as a reusable template that you can pass data to. If you've ever needed to override the markup for a given slot within a parent, but don't have access to the relevant underlying data, template scoping is the solution.