Stringify json object in array, that is equal to date

Question

I would like to tell a json object, to stringify the object that belongs to the array with this days date/time.

I have a php script which fetches a json object, with multiple arrays in it, which looks something like this:

data: Array(55)

    0: {date: "2017112700", p: Array(1)}
    1: {date: "2017112701", p: Array(1)}
    2: {date: "2017112702", p: Array(1)}

    and so forth...55 in all.

I am able to verify that my date variable (date_test) matches a date variable in the json array.

var date_test;

var index = json.data.findIndex(function(item, i){
  return item.date === date_test
});

console.log(index);

Lets say that console.log(index); gives my a '9'.

This shows me where date_test and item.date match.

Now this where I am stuck....I can stringify and whatever the information from the json arrays, but I would like stringify the object that matches my date_test. Anyone?

Why not JSON.parse it and find the actual data?

mplungjan
– mplungjan

2017-11-27 09:55:50 +00:00
Commented Nov 27, 2017 at 9:55 — mplungjan
– mplungjan, Commented Nov 27, 2017 at 9:55
Do you want the complete object of which date matches?

Makarand Patil
– Makarand Patil

2017-11-27 09:57:37 +00:00
Commented Nov 27, 2017 at 9:57 — Makarand Patil
– Makarand Patil, Commented Nov 27, 2017 at 9:57
The returned data does not look like JSON.

evolutionxbox
– evolutionxbox

2017-11-27 10:17:11 +00:00
Commented Nov 27, 2017 at 10:17 — evolutionxbox
– evolutionxbox, Commented Nov 27, 2017 at 10:17

Zammy · Accepted Answer · 2017-11-27 10:29:43Z

2

Get the object that machtes your search:

var obj = json.data[index]; //your previously found index

Then stringify it:

var json = JSON.stringify(obj);

edited Nov 27, 2017 at 10:29

answered Nov 27, 2017 at 9:58

Zammy

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2 Comments

Zammy Over a year ago

in case you just need to stringify the p array use this to grab it: json.data[index].p

Pokd Over a year ago

This was it! Thanks...the simple answer! I just used for example: var json_temp = JSON.stringify(json.data[index].p[0]["temperature"]); and then console.log(json_temp);

cнŝdk · Accepted Answer · 2017-11-27 10:27:41Z

1

You can use Array#find() method like this:

let date_test = "2017112701";

var searchObj = arr.find(function(item) {
  return item.date === date_test;
});

Then you can stringify it:

JSON.stringify(searchObj);

Demo:

var arr = [{
    date: "2017112700",
    p: []
  },
  {
    date: "2017112701",
    p: []
  },
  {
    date: "2017112702",
    p: []
  }
];

let date_test = "2017112701";

var searchObj = arr.find(function(item) {
  return item.date === date_test;
});
console.log(JSON.stringify(searchObj));

edited Nov 27, 2017 at 10:27

answered Nov 27, 2017 at 10:04

cнŝdk

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Comments

Makarand Patil · Accepted Answer · 2017-11-27 10:12:39Z

0

You can use jQuery.grep() to filter the json data as shown below

$(document).ready(function() {
  var myObj = [{
      date: "2017112700",
      p: ['a']
    },
    {
      date: "2017112701",
      p: ['b']
    },
    {
      date: "2017112702",
      p: ['c']
    }
  ];
  var mydate = '2017112701';
  var output = $.grep(myObj, function(value, index) {
    return value.date == mydate;
  });
  console.log(JSON.stringify(output));
});

<script src="https://ajax.googleapis.com/ajax/libs/jquery/2.1.1/jquery.min.js"></script>

answered Nov 27, 2017 at 10:12

Makarand Patil

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Comments

Pokd · Accepted Answer · 2017-11-27 11:04:15Z

0

var json_temp = JSON.stringify(json.data[index].p[0]["temperature"]); and then console.log(json_temp);

answered Nov 27, 2017 at 11:04

Pokd

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