luolinyin的专栏

npm ERR! code 128npm ERR! An unknown git error occurred

var aaa=["a","b","c","d"]console.log(aaa.join(","))输出a,b,c,d

var arr = [{"name":"abc"},{"name":"def"}];function getTextByJs() { var str = ""; for (let item of arr) { str += arr.name+ ","; } //去掉最后一个逗号(如果不需要去掉，就不用写) if (str.length > 0) { str = str.substr(0, str.length - 1); .