Question

我有一个包含JSON Object的javascript数组，如下所示： -

var data :[{
         name:"ABC",
         categories:[{
                     name:"XYZ",
                     categories:[{
                           .
                            .
                             .
                              N
                        }]
              }]
}]

我想在这个数组中使用iterator并想检查categories[]是否存在而Categories[]是否有任何值，如果是，则将数据插入其中

EG：

var mydata:[];
 mydata.push({name:"MNP",Categories:[]});

我想在类别

中插入此数据

Answer 1

// this is a sample object containing 1 element is text and one element is an array
var object = {smapleA: 'some text', sampleB : ['stringArray']};

// init a var to save the status (intial it must be false)
var containsArray = false;

// go over each element in the object with this loop definition
for(let key in object){
   // for be clean check if object.key realy exists 
   if(object.hasOwnProperty(key){

     // here you check if the current element is an Array
     if(Array.isArray(object[key])){

       // set containsArray variable to true
       containsArray = true;
     }
   }
}

console.log(containsArray);

如何检查json是否包含

1 个答案: