angularjs中使用json.stringify()字符串后得到的json对象结果不完整

Question

$scope.upLoad = function() {
var emImage = "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";
console.log("emImage>>>>>>>>>>>>>>>>>" + emImage);
var requestdata = JSON.stringify({
"base64File": emImage
});
console.log("requestdata>>>>>>>>>>>>>>>>>" + requestdata);
}

结果1：
[INFO:CONSOLE(177)] "emImage>>>>>>>>>>>>>>>>>P7DIrESP56EzCdZ57e0gLgjIwMS8TARUavjVGnRqdWiqqEGgvQ0SzzXOjMO5qxZDH5HM/mq5G9B+pADujmZ0VpKB/g6sXFWBoCEN972yHLtevxZqtYSakgr8bUMsqls1HQat/JDfLy/WatWJAY6ORqM6j35w3YkA/...............................................................
vgyk+zyVnsT7upikIha5yOxV1LfGp+Xffg8RFizFjzJhTBmvFhvXwP/VXlC5dirMTosiMcD47BJZgGUWqVg9HUEZ3Yho8qz+m4+7ANrZBZJ67o4CfZYdh2kVZCLdGIm5YEuJZRNy3/QB2fWXDpLxYJGUnw5KVDktyNv5y/Z0s3TDSJmoQFqEmeTWIsEQgIS4SlS1qrNj

//////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////////
结果2:
[INFO:CONSOLE(181)] "requestdata>>>>>>>>>>>>>>>>>{"base64File":"P7DIrESP56EzCdZ57e0gLgjIwMS8TARUavjVGnRqdWiqqEGgvQ0SzzXOjMO5qxZDH5HM/mq5G9B+pADujmZ0VpKB/g6sXFWBoCEN972yHLtevxZqtYSakgr8bUMsqls1HQat/JDfLy/WatWJAY6ORqM6j35w3YkA/...............................................vgyk+zyVnsT7upikIha5yOxV1LfGp+Xffg8RFizFjzJhTBmvFhvXwP/VXlC5dirMTosiMcD47BJZgGUWqVg9HUEZ3Yho8qz+m4+7ANrZBZJ67o4CfZYdh2kVZCLdGIm5YEuJZRNy3/QB2fWXDpLxYJGUnw5KVDktyNv5y/Z0s3TDSJmoQFqEmeTWI

JSON.stringify后得到的对象不完整，结果最后少一部分求赐教！

Answer 1

我也碰到了，小程序上面用的时候他直接给我吧user_id忽略了。。忽略了
var str = JSON.stringify(data);
console.log(data)
if(str.indexOf("user_id")!=-1){
if(data.user_id == undefined || data.user_id == null){
wx.showToast({
title: '您的登录信息异常，无法进行操作',
icon: 'none',
duration: 3500
})
return
}
}