How to traverse Map objects in js
console.log(jsonData);//火狐控制台打印输出： Object { fileNumber="文件编号", fileName="文件名称"}
for(var key in jsonData)
console.log("属性：" + key + ",值："+ jsonData[key]);
}Printout:
Attribute: fileNumber, value: file number
Attribute: fileName, value: file name
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