[英]How do I count the amount of Responses in this array object?
如何計算每個“響應”部分中的響應數量?
var json = {
"Answers": [
{
"Responses": [
{
"ResponseID": 5,
"RespondingUser": null,
"ResponseDate": "\/Date(1351700419747)\/"
},
{
"ResponseID": 6,
"RespondingUser": null,
"ResponseDate": "\/Date(1351700437387)\/"
},
{
"ResponseID": 7,
"RespondingUser": null,
"ResponseDate": "\/Date(1351700448550)\/"
}
],
"AnswerID": 3,
"AnswerText": "No"
},
{
"Responses": [
{
"ResponseID": 9,
"RespondingUser": null,
"ResponseDate": "\/Date(1351700419747)\/"
},
{
"ResponseID": 6,
"RespondingUser": null,
"ResponseDate": "\/Date(1351700437387)\/"
},
{
"ResponseID": 7,
"RespondingUser": null,
"ResponseDate": "\/Date(1351700448550)\/"
}
],
"AnswerID": 4,
"AnswerText": "Probably not"
},
{
"Responses": [
{
"ResponseID": 50,
"RespondingUser": null,
"ResponseDate": "\/Date(1351700419747)\/"
},
{
"ResponseID": 6,
"RespondingUser": null,
"ResponseDate": "\/Date(1351700437387)\/"
},
{
"ResponseID": 7,
"RespondingUser": null,
"ResponseDate": "\/Date(1351700448550)\/"
}
],
"AnswerID": 5,
"AnswerText": "Definitely not"
}
],
"QuestionID": 2,
"QuestionText": "Steve Lamaq?",
"ClosingDate": "\/Date(1351958948793)\/",
"AskingUser": null
};
任何建議將是驚人的! 非常感謝
var i = json.Answers.length,
total = 0;
while(i--){
total += json.Answers[i].Responses.length;
}
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