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云南大王-js判断字符是否在数组中【转】
发布时间：2020-04-16 00:00:00
//检测某个字符是否在此数组中
function isInArray(arr, str) {
var testStr = ',' + arr.join(",") + ",";
return testStr.indexOf("," + str + ",") != -1 ;
}
var arr = ["101", "102", "103"];
console.log(isInArray(arr,"101"));//true
文章转自：https://blog.csdn.net/weixin_38052444/article/details/81805870
