Filter JSON based on some values in javascript

Question

I want to filter my JSON in such a way that I only want to have data with "category": 'two'.

Data:

var json = [
             {"id": 1,
              "category":'one'; 
             }
             {"id": 1,
              "category":'two'; 
             }
             {"id": 1,
              "category":'two'; 
             }
             {"id": 1,
              "category":'three'; 
             }
           ]

Please learn [the difference between JSON and Object Literal Notation](https://stackoverflow.com/questions/2904131/what-is-the-difference-between-json-and-object-literal-notation). — str, Dec 03 '18 at 14:52
@str, that's not even an array of objects. It's just one big syntax error. — Federico klez Culloca, Dec 03 '18 at 14:53
https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/filter — epascarello, Dec 03 '18 at 14:53

Mamun · Accepted Answer · 2018-12-03T15:01:53.173

0

The data is not valid. Objects inside an array and each key-value pair should be separated by comma (,). Correct that then use filter():

var json = [{"id": 1,
  "category":'one' 
  },{"id": 1,
  "category":'two' 
  },{"id": 1,
  "category":'two' 
  },{"id": 1,
  "category":'three'
  }
]
var res = json.filter(i => i.category == 'two');
console.log(res);

edited Dec 03 '18 at 15:01

answered Dec 03 '18 at 14:54

Mamun

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I tried the filter method, it gives me an error as json.filter is not a function – abhi Dec 03 '18 at 14:59
2

@abhi have you also fixed the syntax? – Federico klez Culloca Dec 03 '18 at 15:00
@abhi, then *json* is not an array... – Mamun Dec 03 '18 at 15:00
yes, does the value has to be in single quotes, I have value in double quotes – abhi Dec 03 '18 at 15:01
1

@abhi no, the problem is that you had random `;` and missing `,`. Check what Mamun wrote with what you have. – Federico klez Culloca Dec 03 '18 at 15:03
@FedericoklezCulloca I did fixed that, that was typo error while posting the question, sorry for that – abhi Dec 03 '18 at 15:05
actually the data i have is a output of redis cache key – abhi Dec 03 '18 at 15:06
it works after doing `JSON.parse(josn)` – abhi Dec 03 '18 at 15:16

Filter JSON based on some values in javascript

1 Answers1