Effects in Angular are pretty new but have definitely stirred up some controversy in their short time as part of the framework. Basically as far as I understand it, the main goal with the effect function is to handle things related to signals, that you really have no way to do otherwise. And as the Angular docs point out, “effects are rarely needed in most application code”. But there are some totally valid use cases.
Hey there, Angular folks, and welcome back! If you're still using @Input decorators and ngOnChanges() for managing states, this tutorial is for you! We’ll take two simple forms that are enabled and disabled programmatically based on an @Input and refactor them to use Angular’s latest signal-based approach.
If you want to be a good developer, probably the most important thing to do is to continue to learn and adapt as things change. So, I’m going to try to help you do exactly this. I’m going to show you a tool that I started using recently. It's so good that I don’t want to go back. This tool is called Cursor and it makes development more fun and more productive.
Many developers struggle with displaying currency correctly, especially when dealing with different locales and formats. This is because currency formatting can be complex, with many variables to consider such as decimal separators, currency symbols, and number formatting. It's not just about displaying the currency, but also about making sure it's easily readable and understandable by all users.
Many developers struggle with formatting dates correctly for different locales and use cases, leading to inconsistent user experiences. When working with dates, it's easy to get caught up in the complexity of formatting options, which can result in a mess of code that's hard to maintain. Inconsistent date formats can also lead to confusion among users, and even worse, errors in calculations or data analysis.
When building Angular applications, we've all been there - stuck with repetitive code that's makes our app large and hard to maintain. We've got sections of code that do similar tasks, but with slight variations, and we copy-paste them in many places. Sometimes throughout the whole app, and sometimes even within a component template. This leads to a mess of code that's difficult to read and update.
How do people without arms, people who can’t see well, people who can’t hear, or who have other disabilities, use your application? Making forms accessible in Angular is crucial, not just because it's the right thing to do, but also because it can greatly enhance the user experience for everyone, regardless of their abilities. By doing so, we can ensure that our application is usable by as many people as possible, which can ultimately lead to a better user base and even more business opportunities. In this tutorial we’ll cover several things we can do to greatly improve the accessibility of a basic Angular form.
Forms are a pretty big deal in any application really and, if you didn’t already know or haven’t had much experience with it yet, Angular has you covered with the Reactive Forms Module. In this example we’ll create a basic form control and then add several enhancements to the form overall based on the validity and interaction states of the control. By the end of this tutorial, you’ll be able to quickly add your own form controls and create some very useful forms.
Hello and welcome to another Angular tutorial. In this example I’m going to cover how to create something that I need often, a toggle button. This type of button controls the visibility of some sort of associated content. We’ll look two main approaches, one where we use a class and some CSS to control the visibility, and another where we use conditional logic to insert content into or remove it from the DOM. We’ll also look at a couple of bonus variations with the class-based, CSS approach too.
There are a handful of animations that are commonly found in various applications that you probably use every day. I’ll bet you don’t even notice them or give them much thought. These apps just feel easier to use and more intuitive. In this example I’ll show you how to use one that I need often, a crossfade animation where there’s some content fading out while some other content fades in.
There are certain animations that are commonly found in a lot of different applications. They are common because people are used to the way they feel, and they are good at conveying interactions and the meaning behind them. One of these types of animations is a flip animation where you have some content and then, through some sort of interaction, it needs to flip over and reveal the content from the opposite side. We’ll this is what we’re going to create in this example.
There are a few things that CSS shapes need in order to function and display as desired. First, they need to be floated. Next, they need a coordinate system to control how they are drawn and where they are placed. And this coordinate system needs an origin.
When you began building websites did you expect content to wrap around a floated image with transparency? Did you think that the first time you created a floated circle with a 50% border radius that the content would flow around it in an arc? And each time you did, did you yell to yourself, why is this not possible? Well, this used to be a real problem on the web, but now we have CSS Shapes.
So what exactly are CSS Shapes? Well, it’s probably easiest to understand what they are by contrasting them with what they are not. So let's look at some examples.
When designing for print, the sky is the limit. We can really push the envelope especially when it comes to layout. We can wrap content around any shape we’d like. But on the web, everything is contained within rectangles. We’ve been pretty creative while building in this boxy world but what if we could break free and build designs more similar to those found in editorial design?
When you build things in Angular, you’ll probably end up wanting or needing to add animations and transitions to parts of your UI. One very common one is a “slide-in” or “slide-out” animation where an item transitions from a hidden to a visible state. And since this is something that you’re likely going to need at some point, I figured that I’d show you how to create one. So that’s what we’re going to do in this post.
Signals are a pretty big deal in Angular now a days. I’ve created several videos on them recently because there’s a lot to consider when using them. As you use them more over time, you’ll probably run into scenarios where you need to execute code when signal values change. Now, one way to do this is to use computed signals which is something I’ve covered in the past, but there is a possibility that even this won’t work for your situation. We’ll if this is the case, there is another possibility. You can use the effect function.
Signals are now a core concept in the Angular framework. When you build components, directives, and services, you’re going to want use them going forward. And as you do, at some point you’ll likely ask yourself the question: how can I create a signal based on the values from another signal? Well, in this post, I’m going to show you how, and it won’t take very long either!
Sometimes you may need to programmatically set the value for a CSS custom property while building components in Angular. I occasionally run into situations where I need to use a custom property based on a dynamic value. Like a bar chart for example, where the items in the chart are based on data from an api. Well in this example, we’re going to look at three different ways to set custom properties programmatically. We’ll use basic style binding, then we’ll use the Renederer2 setStyle() method, and after that, we’ll use host element binding.
In Angular, we can now create variables for reuse right within our component templates. Now that might seem odd but it’s actually pretty cool. If you’re like me, you may have a hard time understanding the benefits at first. So, in this example, I’ll show you how to create these template variables, and then I’ll show you several different possible use cases and benefits to help you better understand why you may want to use them in your projects.