sort an array of objects by 1 or more property values

Question

I am figuring out if there is a better way to sort the below array.

The below code sorts the array based on the label and deviceRegistered. if label is Desk phone and deviceRegistered is true then it should take the precedence.

My approach is like below.

const terminals = [
  {
    "device":"JKJCF00",
    "directory":"+1899990000",
    "label":"Jabber",
    "deviceRegistered":"false"
  },
  {
    "device":"IOP8999",
    "directory":"9099886644",
    "label":"Desk Phone",
    "deviceRegistered":"false"
  }, 
  {
    "device":"KLJ7888",
    "directory":"+8999999",
    "label":"Jabber",
    "deviceRegistered":"true"
  },  
  {
    "device":"VFD87987",
    "directory":"+12386444",
    "label":"Desk Phone",
    "deviceRegistered":"true"
  }]

let term = [...terminals],arr=[],sortedLines = [],lineObj ={};
  term.forEach(line => arr.indexOf(line.label)===-1 ? arr.push(line.label):'');
  arr.forEach(device => {
     let filterArr = term.filter(line => line.label === device)
     let sortArr = [...filterArr].sort((dev1,dev2) => dev1.deviceRegistered !== 'true' ? 1 : dev2.deviceRegistered !== 'true' ? -1 : 0)
     lineObj[device] = sortArr
  })
  for (line in lineObj){ console.log(lineObj[line])
     sortedLines.push(...lineObj[line])
  }
}

The output is

[
  {
    "device":"KLJ7888",
    "directory":"+8999999",
    "label":"Jabber",
    "deviceRegistered":"true"
  },
  {
    "device":"JKJCF00",
    "directory":"+1899990000",
    "label":"Jabber",
    "deviceRegistered":"false"
  },
  {
    "device":"VFD87987",
    "directory":"+12386444",
    "label":"Desk Phone",
    "deviceRegistered":"true"
  },
  {
    "device":"IOP8999",
    "directory":"9099886644",
    "label":"Desk Phone",
    "deviceRegistered":"false"
  }
]

Duplicate of https://stackoverflow.com/questions/1129216/sort-array-of-objects-by-string-property-value — mfabel, Jan 21 '22 at 16:18
Does this answer your question? [Sort array of objects by string property value](https://stackoverflow.com/questions/1129216/sort-array-of-objects-by-string-property-value) — mfabel, Jan 21 '22 at 16:20

score 1 · Accepted Answer · answered Jan 21 '22 at 16:15

You could check the properties and use the delta of the boolean values.

const
    array = [
        { device: "JKJCF00", directory: "+1899990000", label: "Jabber", deviceRegistered: "false" },
        { device: "IOP8999", directory: "9099886644", label: "Desk Phone", deviceRegistered: "false" },
        { device: "KLJ7888", directory: "+8999999", label: "Jabber", deviceRegistered: "true" },
        { device: "VFD87987", directory: "+12386444", label: "Desk Phone", deviceRegistered: "true" }
    ];
    
array.sort((a, b) =>
    (b.label === 'Desk Phone') - (a.label === 'Desk Phone') ||
    (b.deviceRegistered === 'true') - (a.deviceRegistered === 'true')
);

console.log(array);

.as-console-wrapper { max-height: 100% !important; top: 0; }

Wow, That was a one liner code. I am trying to figure out your solution. Would appreciate if you can explain that comparison. — Kapil gopinath, Jan 21 '22 at 16:48
Got it. Your title 'You could check the properties and use the delta of the boolean values.' explains it. Thanks — Kapil gopinath, Jan 21 '22 at 16:56

score 0 · Answer 2 · answered Jan 21 '22 at 16:25

Assumption: I'm the author of this library, but I created sort-es exactly to simplify the array sorting.

If you're interested : docs GH

import { byValues, byString, byValue, byBoolean } from "sort-es"

const terminals = [] //...items

const sorted = terminals.sort(byValues([
    ["label", byString()],
    ["deviceRegistered", byValue(d => d === 'true', byBoolean())]
]))

sort an array of objects by 1 or more property values

2 Answers2