在 JavaScript 中合并嵌套数组以形成一维数组
问题
我们需要编写一个JavaScript函数,它接受两个嵌套数组arr1和arr2作为第一个和第二个参数。
我们的函数应该创建并返回第三个数组,该数组包含arr1和arr2的所有元素,但扁平化为一维
例如,如果函数的输入是-
const arr1 = [ 1, [ 2, [ 4, 5, [ 6 ] ] ] ]; const arr2 = [ 11, 12, [ 16, 18, [ 19, 21, [ 23 ] ] ] ];
那么输出应该是-
const output = [1, 2, 4, 5, 6, 11, 12, 16, 18, 19, 21, 23];
示例
以下是代码-
const arr1 = [ 1, [ 2, [ 4, 5, [ 6 ] ] ] ]; const arr2 = [ 11, 12, [ 16, 18, [ 19, 21, [ 23 ] ] ] ]; const flattenAndMerge = (arr1 = [], arr2 = []) => { const res = []; const flatten = (arr = []) => { for(let i = 0; i < arr.length; i++){ if(Array.isArray(arr[i])){ flatten(arr[i]); }else if(typeof arr[i] === 'number'){ res.push(arr[i]) }; }; }; flatten(arr1); flatten(arr2); return res; }; console.log(flattenAndMerge(arr1, arr2));输出结果
以下是控制台输出-
[ 1, 2, 4, 5, 6, 11, 12, 16, 18, 19, 21, 23 ]