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- ffsshhttiikk/opencode-agents-skills
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- 2026年2月28日 22:52
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SKILL.md
来源说明 · 只读预览- name
- javascript
- description
- JavaScript programming language for web development
- license
- MIT
- compatibility
- opencode
- metadata
- {"audience":"developers","category":"programming-languages"}
## What I do
- Write modern JavaScript (ES6+)
- Handle async operations with promises and async/await
- Use array methods (map, filter, reduce)
- Work with objects and arrays
- Handle DOM manipulation
- Use modules and imports
- Implement error handling
## When to use me
When building web applications or server-side code with Node.js.
## Variables & Types
```javascript
// Let and const
const PI = 3.14159;
let count = 0;
// Template literals
const greeting = `Hello, ${name}!`;
// Destructuring
const { name, age } = user;
const [first, second] = array;
// Spread operator
const copy = { ...original, newProp: value };
const merged = [...arr1, ...arr2];
```
## Arrays
```javascript
const numbers = [1, 2, 3, 4, 5];
// Map, Filter, Reduce
const doubled = numbers.map(n => n * 2);
const evens = numbers.filter(n => n % 2 === 0);
const sum = numbers.reduce((acc, n) => acc + n, 0);
// Find
const found = numbers.find(n => n > 3);
const index = numbers.findIndex(n => n === 3);
// Other methods
numbers.includes(3);
numbers.flatMap(x => [x, x * 2]);
```
## Objects
```javascript
const user = {
name: 'John',
age: 30,
greet() { return `Hi, I'm ${this.name}`; }
};
// Shorthand
const name = 'John';
const obj = { name };
// Optional chaining
const city = user?.address?.city;
// Nullish coalescing
const value = data ?? 'default';
```
## Async
```javascript
// Promises
fetch('/api/data')
.then(res => res.json())
.then(data => console.log(data))
.catch(err => console.error(err));
// Async/await
async function fetchData() {
try {
const res = await fetch('/api/data');
const data = await res.json();
return data;
} catch (err) {
console.error(err);
}
}
// Parallel
const [users, posts] = await Promise.all([
fetch('/api/users').then(r => r.json()),
fetch('/api/posts').then(r => r.json())
]);
```
## Modules
```javascript
// export.js
export const API_URL = 'https://api.example.com';
export function fetchData() { }
export default class MyClass { }
// import.js
import MyClass, { fetchData, API_URL } from './export.js';
```
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