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https://github.com/ahmed-elbald/multi-step-form-angular

📝 This is my solution for Frontend Mentor's Multi-Step Form challenge
https://github.com/ahmed-elbald/multi-step-form-angular

angular angular2 bem-methodology css forms frontend-mentor frontendmentor-challenge html-accessibility html5 javascript multi-step-form scss typescript

Last synced: 13 days ago
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📝 This is my solution for Frontend Mentor's Multi-Step Form challenge

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README 

        
![Design preview for the Multi-step form coding challenge](./design/desktop-preview.jpg)



Frontend Mentor - Multi-step form





   Challenge

   |

   My Solution










## Built With



- HTML

- SCSS

- Typescript

- Angular v17

- NgRx Component Store

- RxJs



## App Features



I've implemented all the features required by the original challenge, thus the user can:



- Complete each step of the sequence

- Go back to a previous step to update their selections

- See a summary of their selections on the final steps and confirm their order

- Receive form validation messages if:

  - A field has been missed

  - The email address is not formatted correctly

- See hover and focus states for all interactive elements on the page

- See animation effects when navigating from step to another



In addition, most form sections are built dynamically allowing for other features to be added easily in the future.



## Intro



This is one of Frontend Mentor's interesting challenges. It's not the first time I tackle it though. I did it about

five month ago. Then, I decided to recreate it after learning Angular. Thus I used HTML, SCSS and Angular.

I've also improved the overall accessibility and my code structure.



## Hard Decisions I Had To Make



Throughout this project, I came across a couple of problems that required taking some hard decisions.

Here are some of them:



1. **Structuring the project folders:**



   At first, I was going to use the `AppComponent` as the main component for the form feature. But then

   I decided that such a form can not be the main feature of an application. So, I've decided to make a separate feature

   called `purchase`, in which I included the whole form. Regarding the structure of each feature's folder, I took that from

   [Joshua Morony's video](https://youtu.be/7SDpTOLeqHE?si=wTS9S5t-O4tRaJ_t) about structuring Angular projects.



2. **Should I use NgRx Global or Component Store?**



   Honestly, I was going to use the Global Store. But again, I imagined what this form would look like inside a large website,

   and how important it might be. I ended up deciding that its state could be managed using the Component Store. I don't know

   if my decision was right especially that my store file is quite long. I would appreciate any feedback concerning that matter.



3. **Structuring the form:**



   Since the form is multi-step, I had to decide how to split those steps... Should they have different routes or may I just use links

   that point to page fragments like `#personal-info` or `#summary`? I finally opted to use fragments as it seemed to me that transitioning

   from step to another does not resemble transitioning among routes, which usually involve changing the whole view. I also used a `StepComponent` that represented the basic structure of all form steps like the header and the content.



## What I Learned



In order to create this form, which is quite complex, I learned some Angular techniques I didn't know about like:



1. Creating custom form controls using the `ControlValueAccessor` Interface.

2. Making reusable input components by providing the `ControlContainer` to the component view.

3. Some important WAI ARIA attributes for forms like `aria-invalid` and `aria-errormessage`.



## Contribution



If you want to make any suggestions, feel free to do that in the [discussions section](https://github.com/Ahmed-Elbald/Multi-Step-Form-Angular/discussions). Also, feel free to clone the repo and play around with the source could.