[Snyk] Fix for 2 vulnerabilities

[snyk-io]

Snyk has created this PR to fix 2 vulnerabilities in the npm dependencies of this project.

Snyk changed the following file(s):

• frontend/todo-app-angular/package.json

Vulnerabilities that will be fixed with an upgrade:

	Issue	Score
	Cross-site Scripting (XSS) SNYK-JS-ANGULARCOMPILER-15610286	76
	Cross-site Scripting (XSS) SNYK-JS-ANGULARCORE-15610287	76

Breaking Change Risk

Notice: This assessment is enhanced by AI.

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🦉 Cross-site Scripting (XSS)

[snyk-io]

This is a major upgrade, spanning from Angular version 15 to 19. It introduces a significant number of breaking changes, new features, and architectural shifts. Manual intervention and a thorough migration process are required.

Key Breaking Changes & Migrations:

• Angular 16:

  • Node.js Requirement: Requires Node.js v16 or v18.
  • TypeScript Requirement: Requires TypeScript 4.9 or later.
  • Removal of ngcc: The Angular Compatibility Compiler (ngcc) has been removed. Libraries built with the older View Engine are no longer supported.
  • Standalone APIs: Introduction of standalone components, directives, and pipes as a simpler alternative to NgModules. The ng update command can help with migration.

• Angular 17:

  • New Control Flow Syntax: Introduces @if, @for, and @switch for templating, replacing *ngIf, *ngFor, and ngSwitch. An automated migration is available via ng generate @angular/core:control-flow-migration.
  • Standalone by Default: New projects default to standalone components. NgModules are now optional.
  • Node.js Requirement: Requires Node.js v18.13.0 or later.

• Angular 18:

  • TypeScript 5.4 Support: This version supports TypeScript 5.4.
  • zone.js is becoming optional: Work has begun to make zone.js optional, which will impact change detection.
  • Material 3.0 Support: Official support for Material 3.0.

• Angular 19:

  • Standalone by Default: Components, directives, and pipes are now standalone by default. The standalone: false flag must be explicitly set for non-standalone components.
  • inject() Function Migration: An optional migration is available to shift from constructor-based dependency injection to the inject() function.
  • Stable Signal-based APIs: APIs such as Input, Model, and Output are now stable.

Recommendation:
This upgrade should be performed incrementally, one major version at a time, using the official Angular Update Guide. The ng update command will be essential for automating parts of the migration. Expect to manually refactor code, especially around removed APIs, control flow syntax, and third-party library compatibility. Thorough testing is critical at each step.

Notice 🤖: This content was augmented using artificial intelligence. AI-generated content may contain errors and should be reviewed for accuracy before use.