避免复制函数内部的代码(仅限Javascript)

// 不好的做法：复制粘贴代码
const arr1 = [3, 1, 2];
arr1.sort((a, b) => a - b);
arr1.filter(num => num > 1);

const arr2 = [6, 4, 5];
arr2.sort((a, b) => a - b);
arr2.filter(num => num > 4);

// 好的做法：封装成函数
function processArray(arr, filterCondition) {
  return arr.sort((a, b) => a - b).filter(filterCondition);
}

const arr1 = [3, 1, 2];
const processedArr1 = processArray(arr1, num => num > 1);

const arr2 = [6, 4, 5];
const processedArr2 = processArray(arr2, num => num > 4);

// 封装成函数
function processArray(arr, filterCondition) {
  return arr.sort((a, b) => a - b).filter(filterCondition);
}

const arr1 = [3, 1, 2];
const processedArr1 = processArray(arr1, num => num > 1);

const arr2 = [6, 4, 5];
const processedArr2 = processArray(arr2, num => num > 4);

console.log(processedArr1); // 输出: [2, 3]
console.log(processedArr2); // 输出: [5, 6]