---

name: arkts description: ArkTS Language Specification. ArkTS is a statically-typed programming language developed by Huawei for HarmonyOS, extending TypeScript with features from Java and Kotlin. Use for ArkTS syntax, types, classes, functions, and language features.

Arkts Skill

Comprehensive assistance with arkts development, generated from official documentation.

When to Use This Skill

This skill should be triggered when:

• Working with arkts
• Asking about arkts features or APIs
• Implementing arkts solutions
• Debugging arkts code
• Learning arkts best practices

Quick Reference

Common Patterns

Pattern 1: Parentheses in types (where a type is a combination of array, function, or union types) are used to specify the required type structure. Without parentheses, the symbol ‘|’ that constructs a union type has the lowest precedence as presented in the following example:

|

Pattern 2: A compile-time error occurs if typeReference is not a class or interface type. The semantics of the keyof type is presented in the following example:

1 class A {
2    field: number
3    method() {}
4 }
5 type KeysOfA = keyof A // "field" | "method"
6 let a_keys: KeysOfA = "field" // OK
7 a_keys = "any string different from field or method"
8   // Compile-time error: invalid value for the type KeysOfA

Example Code Patterns

Example 1 (javascript):

1 let b: boolean  // using primitive value type name
2 let n: number   // using primitive value type name
3 let o: Object   // using predefined class type name
4 let a: number[] // using array type

Example 2 (javascript):

1 let b: boolean  // using primitive value type name
2 let n: number   // using primitive value type name
3 let o: Object   // using predefined class type name
4 let a: number[] // using array type

Example 3 (javascript):

1 let b: boolean  // using primitive value type name
2 let n: number   // using primitive value type name
3 let o: Object   // using predefined class type name
4 let a: number[] // using array type

Reference Files

This skill includes comprehensive documentation in references/:

• introduction.md - Introduction documentation
• language_basics.md - Language Basics documentation
• modules.md - Modules documentation
• other.md - Other documentation
• type_system.md - Type System documentation

Use view to read specific reference files when detailed information is needed.

Working with This Skill

For Beginners

Start with the getting_started or tutorials reference files for foundational concepts.

For Specific Features

Use the appropriate category reference file (api, guides, etc.) for detailed information.

For Code Examples

The quick reference section above contains common patterns extracted from the official docs.

Resources

references/

Organized documentation extracted from official sources. These files contain:

• Detailed explanations
• Code examples with language annotations
• Links to original documentation
• Table of contents for quick navigation

scripts/

Add helper scripts here for common automation tasks.

assets/

Add templates, boilerplate, or example projects here.

Notes

• This skill was automatically generated from official documentation
• Reference files preserve the structure and examples from source docs
• Code examples include language detection for better syntax highlighting
• Quick reference patterns are extracted from common usage examples in the docs

Updating

To refresh this skill with updated documentation:

1. Re-run the scraper with the same configuration
2. The skill will be rebuilt with the latest information