typescript
TypeScript typed superset of JavaScript for safer, more maintainable code
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- Repository
- ffsshhttiikk/opencode-agents-skills
- Last source activity
- February 28, 2026 at 22:55
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- English
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- 3
- Forks
- 2
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- typescript
- description
- TypeScript typed superset of JavaScript for safer, more maintainable code
- license
- MIT
- compatibility
- opencode
- metadata
- {"audience":"developers","category":"programming-languages"}
## What I do
- Write type-safe TypeScript code
- Use generics for reusable types
- Create interfaces and type aliases
- Implement advanced utility types
- Configure tsconfig for projects
- Handle strict null checking
## When to use me
When building JavaScript applications that need type safety and better tooling.
## Basic Types
```typescript
let name: string = "John";
let age: number = 30;
let isActive: boolean = true;
let numbers: number[] = [1, 2, 3];
let anything: any = "hello";
let unknown: unknown = "world";
function log(): void { }
function fail(): never { throw new Error(); }
```
## Interfaces & Types
```typescript
interface User {
id: number;
name: string;
email?: string;
readonly createdAt: Date;
}
type Status = "pending" | "active" | "disabled";
type ID = string | number;
```
## Functions
```typescript
function greet(name: string): string {
return `Hello, ${name}`;
}
const add = (a: number, b: number): number => a + b;
function createUser(name: string, age?: number = 18): User {
return { name, age };
}
```
## Generics
```typescript
function identity<T>(value: T): T {
return value;
}
interface Box<T> {
value: T;
}
```
## Utility Types
```typescript
type PartialUser = Partial<User>;
type UserPreview = Pick<User, "id" | "name">;
type UserWithoutPassword = Omit<User, "password">;
```
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