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Forms

Articles and publications tagged Forms across the Atmosphere.

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Articles

Publications

Aaron Gustafson’s NotebookMay 25, 2026

Easy Data-entry Verification with a Web Component

Confirming values like email addresses and passwords is a common form need. The `form-matching-fields` web component injects the necessary validation without stomping on browser-native validation using `required`, `pattern`, and such.

accessibilityforms

Aaron Gustafson’s NotebookApr 22, 2026

Visual Validation Feedback for Form Fields

The `form-validation-list` web component provides real-time visual feedback on validation requirements, showing users which rules they have satisfied as they type.

web componentsprogressive enhancement

Aaron Gustafson’s NotebookApr 20, 2026

Never Lose Form Progress Again

Browsers crash. Tabs close. Life happens. Here’s a web component that saves form progress so your users don’t have to start over from scratch.

web componentsforms

Angular-Buch

Angular-BuchMar 1, 2026

Barrierefreiheit in Formularen: Daten versenden

Wenn Nutzende ein Formular absenden, das noch Fehler enthält, entscheidet die Reaktion der Anwendung über die Benutzerfreundlichkeit. Gerade für Menschen, die auf Screenreader oder Tastaturnavigation angewiesen sind, ist ein durchdachtes Verhalten beim Absenden essenziell. In diesem Artikel betrachten wir verschiedene Varianten, wie wir bei der Nutzung von Angular Signal Forms auf ein ungültiges Absenden reagieren können.

Aaron Gustafson’s NotebookJan 31, 2026

Repeatable Form Fields Made Simple

Need to let users add multiple email addresses, phone numbers, or other field groups? The `form-repeatable` web component handles the duplication, renumbering, and form submission automatically.

Aaron Gustafson’s NotebookDec 16, 2025

Dynamic Datalist: Autocomplete from an API

The `datalist` element is great for autocomplete, but it’s static. The `dynamic-datalist` web component brings dynamic, API-driven suggestions to your text fields as users type.

Angular-Buch

Angular-BuchDec 8, 2025

Angular Signal Forms Part 4: Metadata and Accessibility Handling

In the previous parts of this series, we've covered the fundamentals of Signal Forms, advanced validation patterns, and modular form architecture. In this final part, we'll explore the power of assigning field metadata. We'll also have a look at how we can automatically add helpful ARIA attributes based on a field state to make our forms even more inclusive and accessible.

Aaron Gustafson’s NotebookDec 6, 2025

A Web Component for Obfuscating Form Fields

There’s no standard way to make a field readable while editing but obfuscated at rest. The `form-obfuscator` web component fills that gap, giving you control over how sensitive data appears when fields aren’t focused.

Angular-Buch

Angular-BuchOct 20, 2025

Angular Signal Forms Part 3: Child Forms, Custom UI Controls and SignalFormsConfig

We covered fundamentals and advanced validation patterns of Signal Forms in Part 1 and Part 2 of this blog series. In this third part, we'll explore more specialized topics that are relevant for large and modular forms: child forms and custom UI controls. Last but not least, we'll have a look at providing a custom SignalFormsConfig.

Angular-Buch

Angular-BuchOct 15, 2025

Angular Signal Forms Part 2: Advanced Validation and Schema Patterns

Angular Signal Forms offer techniques for advanced validation scenarios and schema patterns, which makes them truly powerful for complex form requirements. In this article, we will go beyond basic field validation as we covered it in Part 1: We will learn about custom schema validation, cross-field validation, conditional validation, asynchronous validation, and how to handle server-side errors gracefully.

Angular-Buch

Angular-BuchOct 13, 2025

Angular Signal Forms Part 1: Getting Started with the Basics

Angular introduces Signal Forms with Version 21.0.0, an experimental but promising approach to form handling that leverages Angular's reactive Signal primitive. This new API offers a declarative way to build forms with full control over the data model and built-in schema validation. In this first part of our four-part series, we'll cover the fundamentals you need to get started with Signal Forms.

Tedium: The Dull Side of the Internet

Tedium: The Dull Side of the InternetSep 3, 2024

The Worst Form On The Internet?

Oracle’s form to access free cloud server space seems designed to discourage you from taking advantage of the offering. It’ll leave you frustrated.

oracleoracle cloud

Aaron Gustafson’s NotebookAug 14, 2024

A Web Component for Conditional Dependent Fields

Sometimes you need to require a value in one form field only if another field is filled in or if that field has a specific value. I ported an old jQuery plugin of mine that made this work to a web component you can use easily right now.

Aaron Gustafson’s NotebookJul 5, 2024

Requirement Rules for Checkboxes

Currently, we can only make checkboxes required or not, individually. In some cases you need to be able to set a specific number of checkboxes that need to be checked. My `form-required-checkboxes` web component enables that.

accessibilityforms

Tim DeschryverFeb 8, 2024

Bringing the power of Signals to Angular Forms with Signal Forms

Signal Forms is a new way to create forms in Angular. It's built on top of the existing `NgModel` with a similar API to `ReactiveForms`, and uses signals to create a reactive and flexible form. The main goal is to make complex forms manageable.

Devtools FM

Devtools FMSep 11, 2023

Corbin Crutchley - Framework Field Guide (learn React, Angular, Vue at the same time)

Corbin Crutchley shares his Framework Field Guide approach to learning React, Angular, and Vue simultaneously through practical examples.

technologyprogramming

bekapod.dev

bekapod.devFeb 25, 2023

React Hook Form & Next.js URL Sync

A quick React hook for syncing React Hook Form with Next.js URL query parameters.

javascriptreact

Aaron Gustafson’s NotebookSep 19, 2022

Spellcheckers exfiltrating PII… not so fast

A recent post from the Otto JS research team highlighted how spellcheck services can inadvertently exfiltrate sensitive user data, including passwords, from your site. To be honest, I found the post a tad alarmist and lacking when it came to recommending solid protections. Consider this your no-nonsense guide to protecting your users’ sensitive information.

Aaron Gustafson’s NotebookAug 22, 2022

Bring Focus to the First Form Field with an Error

While filling out a long form the other day, I couldn’t figure out why it wasn’t submitting. Turns out I’d forgotten to fill in a field, but I didn’t know that because it had scrolled out of the viewport.

accessibilityforms

Tim DeschryverApr 14, 2021

A generic Angular template-driven validator

One validator to rule them all

Tim DeschryverMar 10, 2021

A practical guide to Angular Template-Driven Forms

The things I looked up while learning the template-driven way

Tim DeschryverFeb 25, 2021

A new way to validate Angular Forms

Adding a layer on top of the Angular Forms API to declare useful and readable form validators

Tim DeschryverJul 29, 2019

A little trick with Angular forms and directives 🃏

Imagine having a form that you want to use at multiple places inside your application. The form will have the same layout but the validation will be different. In our case, this form is used in a procedure and in each step of the procedure the form gets more restrictive. Can you keep it DRY? We had this problem and came up with the following solution.

Tim DeschryverApr 23, 2019

Working with Angular forms in an enterprise environment

At our company, we struggled with Angular Forms at the start. This is because we dived in head first, without talking about how we would want to use it throughout our projects. This post shows how we're currently using Angular Forms to be more productive.