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var domains = arr["12.com","qw.com","99.com","00.com"];var str="";domains.forEach(function (item, index) { str += item + ",";});怎么是它变成“"12.com","qw.com","99.com","00.com"”;
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利用数组转字符串的函数，array.toString();
直接用Array.join()就可以了。
var domains = ["12.com","qw.com","99.com","00.com"]; var str = domains.join('，'); console.log(str);
["12.com","qw.com","99.com","00.com"].join(',');//"12.com,qw.com,99.com,00.com"
var domains = arr["12.com","qw.com","99.com","00.com"];你这句有问题吧我估计你想var domains = ["12.com","qw.com","99.com","00.com"];
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利用数组转字符串的函数，array.toString();
直接用Array.join()就可以了。
var domains = arr["12.com","qw.com","99.com","00.com"];
你这句有问题吧
我估计你想
var domains = ["12.com","qw.com","99.com","00.com"];