Question

我有一个oInfoModal对象如下。

var oInfoModal = {"modals" : [
{"myID" : 4,"myVals" : [{2,5,7}]},
{"myID" : 9,"myVals" : [{13,8,6}]},
{"myID" : 6,"myVals" : [{1}]}
] };

我尝试做的是处理一些传入数据并检查该传入数据是否存在值。即如果myID为6，则将myIdx添加到myVals。但是如果myID为6并不存在，那么构建子对象并将其推入oInfoModal。

function processFunction(idx){
  var myIdx = 3;  // 
  var myID = 6;

  var existsMyID = $.map(oInfoModal.modals, function(elem, index) {
    if (elem.myID == myID){ 
      // myID is found in oInfoModal
      return true;
    } else{
      // myID not found in oInfoModal
      return false;
    }
  });

  if (existsMyID){ 
     // myID is found in oInfoModal. push myIdx to myVals for myID=6 in oInfoModal          
     // How?
  } else { 
     //  myID not found in oInfoModal.  Create and push full object to oInfoModal
     var myObj = {"myID" : myID,"myVals" : myIdx};        
     oInfoModal.modals.push( myObj ); // not working
  } 
}

我有一壶咖啡，所以不是这样。我错过了什么？

Answer 1

myVals中的值不正确。您需要使用array#find来检查数组中是否存在值。如果存在，则可以推送新值，否则添加具有id和value的新对象。

＆＃13;

var oInfoModal = {"modals" : [{"myID" : 4,"myVals" : [2,5,7]},{"myID" : 9,"myVals" : [13,8,6]},{"myID" : 6,"myVals" : [1]}]};

function processFunction(idx){
  var myIdx = 3;  // 
  var myID = 20;
  var existsMyID = oInfoModal.modals.find(function(o){
    return o.myID === myID;
  });

  if(existsMyID)
    existsMyID.myVals.push(myIdx);
  else {
    var myObj = {"myID" : myID, "myVals" : [myIdx]};       
    oInfoModal.modals.push(myObj);
  }
}
processFunction(null);

console.log(oInfoModal);

＆＃13;

检查JSON并推送

1 个答案: