Sorting JSONarray by nested property

Question

I am trying to sort array of JSON values, but the property to sort is nested within the JSON object. For this example the sort is to be done using data.nested-name.

I tried using https://stackoverflow.com/a/8175221/2053159 but without any success.

[
{
name: 'a75',
data: {nested-name:"zz\, Hello// There="}},
{
name: 'z32',
data: {nested-name:"aa\, Hello// There="}},
];

expected output ->

[
{
name: 'a75',
data: {nested-name:"aa\, Hello There="}},
{
name: 'z32',
data: {nested-name:"zz\, Hello There="}},
];

Nested name do contain lot of back and forward slashes and other special characters. I don't use external libraries, please provide solutions using native JavaScript.

use `data['nested-name']` – Jaromanda X Aug 16 '17 at 00:21 — Jaromanda X, Aug 16 '17 at 00:21

score 4 · Accepted Answer · edited Feb 09 '21 at 05:38

4

Assuming arr is your array, you can sort like so:

arr.sort( ( a, b ) => a.data[ "nested-name" ] > b.data[ "nested-name" ] )

For higher string comparison accuracy you can use localeCompare

arr.sort( ( a, b ) => a.data[ "nested-name" ].localeCompare(b.data[ "nested-name" ]) )

edited Feb 09 '21 at 05:38

marc_s

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answered Aug 16 '17 at 00:21

vox

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How can i ignore case sensitivity? – NewBee Aug 16 '17 at 00:37
2

@NewBee add `toLowerCase()` – Alex Kudryashev Aug 16 '17 at 00:38
2

`=> a.data["nested-name"].toLowerCase() > b.data[ "nested-name" ].toLowerCase()` - or use `=> a.data["nested-name"].localeCompare(b.data["nested-name"])` – Jaromanda X Aug 16 '17 at 00:40

score 1 · Answer 2 · answered Aug 16 '17 at 00:33

array.sort function takes an optional argument function(a,b) which must return -1, 0, or 1 depending on comparison.
Your data definition contains an error nested-name:"zz\, Hello// There=". If you use - then you must quote the name.
Working sample is here.

var arr=[
{
name: 'a75',
data: {'nested-name':"zz\, Hello// There="}},
{
name: 'z32',
data: {'nested-name':"aa\, Hello// There="}},
];

var result=arr.sort(function(a,b){
  return a.data["nested-name"] > b.data["nested-name"];
  });
  console.log(result);

How can i ignore case sensitivity? – NewBee Aug 16 '17 at 00:37 — NewBee, Aug 16 '17 at 00:37

Sorting JSONarray by nested property

2 Answers2