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The Coding Don

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The Coding Don

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Nov 20, 2025

Angular: Demystifying ExpressionChangedAfterItHasBeenCheckedError in Real Projects

The first time I met ExpressionChangedAfterItHasBeenCheckedError in Angular, a huge release was close, and the console was screaming at me…

Angular: Demystifying ExpressionChangedAfterItHasBeenCheckedError in Real Projects

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From Tutorials to Real Applications

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The Coding Don

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Sep 10

Spring Boot JPA: Fixing the N+1 Query Problem in Real Applications

Fixing the N+1 JPA Query Problem in Real Applications is one of those topics that sounds academic… until your “simple list endpoint” starts…

Spring Boot JPA: Fixing the N+1 Query Problem in Real Applications

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From Tutorials to Real Applications

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The Coding Don

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Sep 1

Angular Multi-Step Wizard with Draft Save: Validation, API Recovery, and Real-World State

“Wizard” features look harmless at the beginning. Then real users do real things: refresh the page, open the flow on a second tab, lose…

Angular Multi-Step Wizard with Draft Save: Validation, API Recovery, and Real-World State

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From Tutorials to Real Applications

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The Coding Don

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Aug 27

Angular httpResource in Real Applications: Loading, Errors, Reloads, and When Not to Use It

If you’ve been experimenting with Angular httpResource in Real Applications then this is the conversation you actually want. Tutorials show…

Angular httpResource in Real Applications: Loading, Errors, Reloads, and When Not to Use It

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From Tutorials to Real Applications

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The Coding Don

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Aug 24

Angular Signals vs RxJS in Real Applications: Choosing the Right State Tool Like a Senior Developer

The debate around Angular Signals vs RxJS in Real Applications: Choosing the Right State Tool Like a Senior Developer usually starts with a…

Angular Signals vs RxJS in Real Applications: Choosing the Right State Tool Like a Senior Developer

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From Tutorials to Real Applications

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The Coding Don

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Aug 21

Angular: Designing a Real-World User Profile Page with Forms, API Calls, and Validation

A user profile page is one of those features that looks harmless at the beginning. It is “just a form.” Then product asks for image upload…

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The Coding Don

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Aug 19

Angular: Building a Notification Center with Read/Unread State and Real API Integration

A Notification Center with Read/Unread State and Real API Integration sounds like a small feature, until you ship it. The “tutorial…

Angular: Building a Notification Center with Read/Unread State and Real API Integration

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From Tutorials to Real Applications

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The Coding Don

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Aug 18

Angular: Building a Real-World Data Table with Search, Filters, Sorting, and Pagination

Building a Real-World Data Table with Search, Filters, Sorting, and Pagination sounds like a UI problem. In real apps it’s a data contract…

Angular: Building a Real-World Data Table with Search, Filters, Sorting, and Pagination

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From Tutorials to Real Applications

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The Coding Don

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Aug 12

Angular Project Structure for Real Applications: Features, Shared Code, and Boundaries

Most Angular projects start clean, then slowly collapse into one giant app/ folder where everything imports everything. The code still…

Angular Project Structure for Real Applications: Features, Shared Code, and Boundaries

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From Tutorials to Real Applications

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The Coding Don

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Aug 11

Building Dynamic Forms in Angular Without Creating a Maintenance Nightmare

Building Dynamic Forms in Angular Without Creating a Maintenance Nightmare sounds like a nice idea right up until “just add one more field”…

Building Dynamic Forms in Angular Without Creating a Maintenance Nightmare

The Coding Don

The Coding Don

I'm an experienced software developer, with more than 25 years of experience. I write about technical stuff, books review and everything I like

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