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Abhi Raj
Abhi Raj

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Sort array of JSON object by key value easily with JavaScript

#javascript #programming #tutorial #webdev


in this video i have explained how you can Sort array of JSON object by key value easily with JavaScript

for those of you who don't want to watch video here is the code:

suppose this is the array of JSON object

var data = [
  { id: 2, name: "FIAT", active: true, parentId: "1" },
  { id: 11, name: "BMW", active: true, parentId: "1" },
  { id: 3, name: "RENAULT", active: false, parentId: "1" },
  { id: 0, name: "AUDI", active: true, parentId: "1" },
];
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now if you want to sort this array of json object by id basis you can simply do this by

data = data.sort((a, b) => {
  if (a.id < b.id) {
    return -1;
  }
});
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result would be :

 [
  { id: 0, name: 'AUDI', active: true, parentId: '1' },
  { id: 2, name: 'FIAT', active: true, parentId: '1' },
  { id: 3, name: 'RENAULT', active: false, parentId: '1' },
  { id: 11, name: 'BMW', active: true, parentId: '1' }
]
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you can read more about JavaScript array.sort method from here

if you want to sort this array of JSON object by name basis (i.e, sort it alphabetically) you can simply do this by

data = data.sort((a, b) => {
  if (a.name < b.name) {
    return -1;
  }
});
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result would be :

 [
  { id: 0, name: 'AUDI', active: true, parentId: '1' },
  { id: 11, name: 'BMW', active: true, parentId: '1' },
  { id: 2, name: 'FIAT', active: true, parentId: '1' },
  { id: 3, name: 'RENAULT', active: false, parentId: '1' }
]
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if you want to sort this array of JSON object by active basis (i.e, sort it on boolean value) you can simply do this by

data = data.sort((a, b) => {
  if (a.active == true && b.active == false) {
    return -1;
  }
  if (b.active == true && a.active == false) {
    return -1;
  }
});
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result would be :

 [
  { id: 3, name: 'RENAULT', active: false, parentId: '1' },
  { id: 2, name: 'FIAT', active: true, parentId: '1' },
  { id: 11, name: 'BMW', active: true, parentId: '1' },
  { id: 0, name: 'AUDI', active: true, parentId: '1' }
]
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Top comments (7)

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slimpython profile image
Abhi Raj •

after taking the feedback of my last post i provided the code as well

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slimpython profile image
Abhi Raj • • Edited

let me know if i can do something else too to improve the article

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joelbonetr profile image
JoelBonetR 🥇 • • Edited

Nice! if you want to improve your posts maybe you can set the language to this code blocks using markdown like that:



```js
// your code goes here
```

So they got colourised accordingly, example:

data = data.sort((a, b) => {
  if (a.active == true && b.active == false) return -1;
  if (b.active == true && a.active == false) return -1;
});
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zabdeldjallil profile image
Djilou •

"easier" way to do is :
data.sort((prev,next)=>prev.id-next.id)

which will return

[
{
"id": 0,
"name": "AUDI",
"active": true,
"parentId": "1"
},
{
"id": 2,
"name": "FIAT",
"active": true,
"parentId": "1"
},
{
"id": 3,
"name": "RENAULT",
"active": false,
"parentId": "1"
},
{
"id": 11,
"name": "BMW",
"active": true,
"parentId": "1"
}
]
for more informations w3schools.com/js/js_array_sort.asp

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frankwisniewski profile image
Frank Wisniewski • 
data = data.sort((a, b) =>  a.name.localeCompare(b.name));
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You should always consider local conditions when sorting.

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joelbonetr profile image
JoelBonetR 🥇 • • Edited

Adding the localeCompare reference

Another way to reach that is using Intl.Collator which has better performance for large arrays.

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afandre profile image
Andrew Fandre •

Thanks, good concise explanation.

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