SKILL.md
Angular Coding Standards
Version-aware Angular development patterns.
Pre-Edit Analysis
Trước khi edit Angular code, read: → C:\Users\BLogic\.cursor\skills\project-scanner\SKILL.md
Quality gates cho high-risk edits (change signature, shared service, delete/rename).
Setup
Step 0: Scan Existing Patterns (Nếu project có code)
Trước khi tạo mới, scan project để follow convention đang dùng:
Glob: **/*.service.ts → Xem service pattern
Glob: **/*.component.ts → Xem component pattern
Glob: **/*.model.ts → Xem model/interface pattern
Grep: FormGroup → Xem form patternStep 1: Detect Angular Version
Read package.json and find @angular/core version:
"@angular/core": "^17.0.0" // → v17
"@angular/core": "~15.2.0" // → v15Step 2: Load Appropriate Patterns
Based on detected version, read the relevant files:
| Version | Files to Read |
|---|---|
| v13-14 | base.md + module-based.md |
| v15-16 | base.md + standalone.md + signals.md (preview) |
| v17 | base.md + standalone.md + signals.md + control-flow.md |
| v18-19+ | base.md + standalone.md + signals.md + control-flow.md + advanced-v18-19.md |
Quick Reference
Naming Conventions (All Versions)
| Type | Convention | Example |
|---|---|---|
| Signal | Prefix $ |
$user, $state |
| Observable | Suffix $ |
isLoading$, data$ |
| Private | Prefix _ |
destroyed$, load() |
Core Principles
| Priority | Principle | Guideline |
|---|---|---|
| 🥇 | Angular-native first | 95% dùng Angular built-in (reactive forms, validators, pipes, directives). 5% custom code khi Angular không hỗ trợ |
| 🥈 | Performance | OnPush, signals, object mapping > array loop, minimal subscriptions |
| 🥉 | Readability | Simple code, dễ đọc, dễ sửa cho dev khác. OOP + SOLID |
Decision Flow
Có vấn đề cần giải quyết?
↓
Angular có built-in? (FormControl, Pipe, Directive, Validator...)
├─ YES → Dùng Angular (95%)
└─ NO → Tạo custom với SOLID pattern (5%)File Index
- [base.md](base.md) - Common patterns all versions
- [module-based.md](module-based.md) - NgModule patterns (v13-14)
- [standalone.md](standalone.md) - Standalone components (v15+)
- [signals.md](signals.md) - Signals API (v16+)
- [control-flow.md](control-flow.md) - @if/@for/@defer (v17+)
- [advanced-v18-19.md](advanced-v18-19.md) - Signal inputs, linkedSignal (v18+)