如何在javascript中将array of array作为单值数组获取？

const array = [[1, 2], [3, 4], [5, 6]];
const flattenedArray = array.flat();
console.log(flattenedArray); // 输出: [1, 2, 3, 4, 5, 6]

const nestedArray = [[1, [2, 3]], [4, [5, [6]]]];
const flattenedArray = nestedArray.flat(2);
console.log(flattenedArray); // 输出: [1, 2, 3, 4, 5, 6]

const array = [[1, 2], [3, 4], [5, 6]];
const flattenedArray = array.reduce((acc, val) => acc.concat(val), []);
console.log(flattenedArray); // 输出: [1, 2, 3, 4, 5, 6]

const array = [[1, 2], [3, 4], [5, 6]];
const flattenedArray = [];

for (let i = 0; i < array.length; i++) {
  for (let j = 0; j < array[i].length; j++) {
    flattenedArray.push(array[i][j]);
  }
}

console.log(flattenedArray); // 输出: [1, 2, 3, 4, 5, 6]