如何在json中使用json在json數組中插入數組值？或者如何在下面的json字符串中插入值

Question

queryString = { 
    dynInfo : [ { 
     dynamicIdQuestionAnswers:[{divid:'',question:'',answer:''}] 
    }] 
}; 

這是查詢字符串。這裏dynInfo和dynamicIdQuestionAnswers都是數組。 如何在dynamicIdQuestionAnswers陣列內插入元素？

這就是我現在要做的。在json字符串中是否可以有數組數組？

totalIndex=0; 
queryString.dynInfo = []; 
queryString.dynInfo.push({}); 

for(var r=0;r<dynamicQuestionIndex;r++){ 
    queryString.dynInfo.dynamicIdQuestionAnswers = []; 
    queryString.dynInfo.push({}); 
    queryString.dynInfo[totalIndex].dynamicIdQuestionAnswers[r]['divid'] = "someText"; 
    queryString.dynInfo[totalIndex].dynamicIdQuestionAnswers[r['question'] = "someText"; 
    queryString.dynInfo[totalIndex].dynamicIdQuestionAnswers[r]['answer'] = "someText" 
} 

dynamicQuestionIndex有一定的價值;

Answer 1

如何在dynamicIdQuestionAnswers數組中插入元素？

示例代碼

var dynamicQuestionIndex = 3; 

var queryString = {}; 
queryString.dynInfo = []; 
queryString.dynInfo.push({}); 
queryString.dynInfo[0].dynamicIdQuestionAnswers = []; 

for (var r = 0; r < dynamicQuestionIndex; r++) { 
    queryString.dynInfo[0].dynamicIdQuestionAnswers.push({ 
     divid: "someText", 
     question: "someText", 
     answer: "someText" 
    }); 
} 

$('c').append('<pre>' + JSON.stringify(queryString, undefined, 2) + '</pre>'); 

結果

{ 
    "dynInfo": [{ 
     "dynamicIdQuestionAnswers": [{ 
      "divid": "someText", 
      "question": "someText", 
      "answer": "someText" 
     }, { 
      "divid": "someText", 
      "question": "someText", 
      "answer": "someText" 
     }, { 
      "divid": "someText", 
      "question": "someText", 
      "answer": "someText" 
     }] 
    }] 
} 

演示

http://jsfiddle.net/3KKBr/1/