在 JavaScript 中从另一个文件重新导出值

// 👇️ named export
export function increaseSalary(salary) {
  return salary + 100;
}

// 👇️ named export
export const department = 'accounting';

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

export {increaseSalary, department, default} from './another-file.js';

// 👇️ import (only if you need to use them in index.js)
import multiply, {increaseSalary, department} from './another-file.js';

// 👇️ re-export
export {increaseSalary, department, default} from './another-file.js';

console.log(multiply(5, 5)); // 👉️ 25
console.log(department); // "accounting"
console.log(increaseSalary(100)); // 👉️ 200

// 👇️ re-export NAMED exports
export {increaseSalary, department} from './another-file.js'

// 👇️ re-export DEFAULT export
export {default} from './another-file.js'

// 👇️ re-export NAMED exports
export {increaseSalary, department} from './first-file.js'

// 👇️ re-export default export
export {default} from './second-file.js'

// 👇️ default and named imports (all from index.js)
import multiply, {increaseSalary, department} from './index.js';

console.log(multiply(10, 10)); // 👉️ 100

console.log(increaseSalary(100)); // 👉️ 200

console.log(department); // 👉️ "accounting"