代码片段仓库

class CustomButton extends HTMLButtonElement {
  constructor() {
    super();
    this.innerText = 'Click Me';
    this.style.backgroundColor = 'blue';
    this.style.color = 'white';
    this.addEventListener('click', () => {
      alert('Button clicked!');
    });
  }
}

customElements.define('custom-button', CustomButton);

{
    "require": {
        "guzzlehttp/guzzle": "^7.0",
        "monlog/monlog": "^2.0"
    },
    "require-dev": {
        "php-unit/php-unit": "9.5"
    }
}

from typing import List, Tuple, Dict, Callable, Optional

Data = Dict[str, int]
Func = Callable[[int, int], int]

def process_data(data: List[Data]) -> List[int]:
    return [d['value'] * 2 for d in data]

def apply_func(fn: Func, x: int) -> int:
    return fn(x)

def double(x: int) -> int:
    return x * 2

result = apply_func(double, 5)  # Returns 10

public record Person(String name, int age) {
    public Person {
        this(name, age);
        if (age < 0) throw new IllegalArgumentException("Age cannot be negative");
    }
}

Person p = new Person("Alice", 30);
System.out.println(p);

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// math.js
export const PI = 3.14159;

export function add(a, b) {
  return a + b;
}

export default function multiply(a, b) {
  return a * b;
}

// app.js
import PI, { add } from './math.js';
import multiply from './math.js';

console.log(PI); // 3.14159
console.log(add(2, 3)); // 5
console.log(multiply(4, 5)); // 20