数组与字符串的相互转化 Js

数组与字符串的相互转化

var obj="new1abcdefg".replace(/(.)(?=[^$])/g,"$1,").split(",");       //字符串转化为数组

var obj2 = "new2abcdefg".split("");                                            //字符串转化为数组
alert(obj);
alert(obj.length);
alert(obj instanceof Array);
alert(obj.join(""));                                                                   //数组转化为字符串