标签（空格分隔）： 未分类
问题：有两个数组 分别是：
1.["a","b","c"]
2.["1","2","3"]
上面两个数组合并
形成3.["a","1","b","2","c","3"]
上代码
var arr1 = ["a", "b", "c"]; var arr2 = ["1", "2", "3"]; var arr3 = [], len = arr1.length; for (i = 0; i < len; i++) { // arr3.splice(len.length - 1, 0, arr1[i], arr2[i]); arr3.push(arr1[i]); arr3.push(arr2[i]); } console.log(arr3)如果要给初始两个数组添加数据可以将上面代码转变为一个函数
function newArr(new1, new2) { var arr1 = ["a", "b", "c"]; arr1.push(new1); var arr2 = ["1", "2", "3"]; arr2.push(new2); var arr3 = [], len = arr1.length; for (i = 0; i < len; i++) { // arr3.splice(len.length - 1, 0, arr1[i], arr2[i]); arr3.push(arr1[i]); arr3.push(arr2[i]); } return arr3; } var ne = newArr("aAne", "cTwo"); console.log(ne);简洁法：
function newArr(arr1, arr2) { //定义一个函数，传两个参数 arr1第一数组，arr2是第二个数组 var kong = []; //声明一个空数组，来放交叉拼接后的数组 for (var i = 0, l = arr1.length; i < l; i++) { // kong.splice(kong.length,0,arr1[i],arr2[i]); //数组里的索引从0开始，kong从1开始，0是要删除的个数 kong.push(arr1[i]); //console.log(kong); //a kong.push(arr2[i]); //console.log(kong); //a 1 } return kong; } var arr = newArr(["a", "b", "c", "e"], ["1", "2", "3", "4"]);document.write(arr + '<br/>');