JS之判断json对象中是否含有某个key值_前端技术_我的小家_八零在线_符号象

<p style="margin: 10px auto; padding: 0px; color: rgb(51, 51, 51); font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">var json = {"key1":"val1","key2":"val2","key3":"val3"};<p style="margin: 10px auto; padding: 0px; color: rgb(51, 51, 51); font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">if(json.hasOwnProperty("key1")){<p style="margin: 10px auto; padding: 0px; color: rgb(51, 51, 51); font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">console.log(json["key1]);<p style="margin: 10px auto; padding: 0px; color: rgb(51, 51, 51); font-family: "PingFang SC", "Microsoft YaHei", "Helvetica Neue", Helvetica, Arial, sans-serif; white-space: normal; background-color: rgb(255, 255, 255);">}