how to get value of a json from a json object using javascript

Question

How to get a value from jsonstring.I have stringified json as

[{"id":0,"date":"05-11-2018","total":0},{"id":1,"date":"06-11-2018","total":0},{"id":2,"date":"07-11-2018","total":0},{"id":3,"date":"08-11-2018","total":0},{"id":4,"date":"09-11-2018","total":0},{"id":5,"date":"10-11-2018","total":0},{"id":6,"date":"11-11-2018","total":0}]

How to get the second date 06-11-2018 from this javascript object string.

var counter = 0;
var jsonObj;
var stringify, obj;

function myFunction(con) {
  counter = con + counter;
  $.ajax({
    url: 'http://localhost/driverapp/www/c11/week.php',
    type: 'POST',
    dataType: "json",
    data: {
      counter: counter
    },
    success: function(response) {
      jsonObj = JSON.stringify(response);
    }
  });
  alert(jsonObj);
}

No need to `stringify` your `response` it is a `json` array so you can use it in a `loop` or call individual value like `response[1].date`. — Atal Prateek, Nov 01 '18 at 06:42

score 1 · Answer 1 · answered Nov 01 '18 at 06:36

    var json=[{"id":0,"date":"05-11-2018","total":0},{"id":1,"date":"06-11-2018","total":0},{"id":2,"date":"07-11-2018","total":0},{"id":3,"date":"08-11-2018","total":0},{"id":4,"date":"09-11-2018","total":0},{"id":5,"date":"10-11-2018","total":0},{"id":6,"date":"11-11-2018","total":0}];

for(var i = 0; i < json.length; i++) {
    var obj = json[i];
    console.log(obj.date);
}

score 0 · Answer 2 · answered Nov 01 '18 at 06:38

You can parse json object by using their key value. to get value from this object

for(var i in response ) {
    // to print only date from every object
    console.log(response[i].date)
}

and also your response is an json array so get second object by

response[1].date

score 0 · Answer 3 · answered Nov 01 '18 at 06:43

Try below code snippet after AJAX sucess.

// after AJAX sucess you will get JSON in string format

// parse STRING -> JSON object

var response = '[{"id":0,"date":"05-11-2018","total":0},{"id":1,"date":"06-11-2018","total":0},{"id":2,"date":"07-11-2018","total":0},{"id":3,"date":"08-11-2018","total":0},{"id":4,"date":"09-11-2018","total":0},{"id":5,"date":"10-11-2018","total":0},{"id":6,"date":"11-11-2018","total":0}]';

var json = JSON.parse(response);

// loop JSON object to get date

json.forEach(function(obj){ 
   console.log('date : ', obj.date );
});

score 0 · Answer 4 · answered Nov 01 '18 at 06:45

Use .filter()

var x = [{"id":0,"date":"05-11-2018","total":0}, {"id":1,"date":"06-11-2018","total":0},{"id":2,"date":"07-11-2018","total":0},{"id":3,"date":"08-11-2018","total":0},{"id":4,"date":"09-11-2018","total":0},{"id":5,"date":"10-11-2018","total":0},{"id":6,"date":"11-11-2018","total":0}];
 function getDate(num){
     var n=num;
     var d=x.filter((el,i)=>{
          if ( i==n)
          return el;
     });
     return d[0].date;
 };
 console.log(getDate(2)); // 07-11-2018

score 0 · Answer 5 · answered Nov 01 '18 at 06:52

Below code will iterate all items from json

    var json=[{"id":0,"date":"05-11-2018","total":0},{"id":1,"date":"06-11-2018","total":0},{"id":2,"date":"07-11-2018","total":0},{"id":3,"date":"08-11-2018","total":0},{"id":4,"date":"09-11-2018","total":0},{"id":5,"date":"10-11-2018","total":0},{"id":6,"date":"11-11-2018","total":0}];

json.forEach(function(item){
    console.log(item.id + ' ' + item.date + ' ' + item.total );
});

how to get value of a json from a json object using javascript

5 Answers5