JS 将数字字符串转为 数字数组 - 婧星

JS 将数字字符串转为 数字数组

将字符串转化为数组主要代码：

let str = \'3,4,5,6\'
let arr = str.split(",").map(Number);
console.log(arr) //结果：[3,4,5,6]

 

将数字数组转化为字符串数组

let arrs = [1, 2, 3, 4, 5, 6, 7, 8, 9];
let strArr = arrs.map(String); //结果： [\'1\', \'2\', \'3\', \'4\', \'5\', \'6\', \'7\', \'8\', \'9\']
let newStr = strArr.join(\',\');
console.log(newStr)//结果为：1,2,3,4,5,6,7,8,9