最简单的方法：

let myStr = '1, 2, 3, 4, 5, 7, 8';

const stringToArr = (myStr) => {
    return myStr.split(',').map(x => x.trim());
};

返回函数

var array = (new Function("return [" + str+ "];")());

其接受字符串和对象字符串：

var string = "0,1";

var objectstring = '{Name:"Tshirt", CatGroupName:"Clothes", Gender:"male-female"}, {Name:"Dress", CatGroupName:"Clothes", Gender:"female"}, {Name:"Belt", CatGroupName:"Leather", Gender:"child"}';

var stringArray = (new Function("return [" + string+ "];")());

var objectStringArray = (new Function("return [" + objectstring+ "];")());

JSFiddle公司https://jsfiddle.net/7ne9L4Lj/1/

正如@oportocala所提到的，空字符串不会产生预期的空数组。

因此，要反击，请执行以下操作：

str
.split(',')
.map(entry => entry.trim())
.filter(entry => entry)

对于预期整数数组，请执行以下操作：

str
.split(',')
.map(entry => parseInt(entry))
.filter(entry => typeof entry ==='number')

split（）方法用于将字符串拆分为子字符串数组，并返回新数组。

var array = string.split(',');

对于逗号分隔字符串的字符串数组：

let months = ["January","Feb"];
let monthsString = months.join(", ");

请注意：

var a = "";
var x = new Array();
x = a.split(",");
alert(x.length);

将提醒1