Logo Questions Linux Laravel Mysql Ubuntu Git Menu
 

How to sort array of objects based on a boolean property?

I have list of users presented in table. Active users should be sorted above the inactive users.

I am trying to make this sort using lodash sortBy function, but unsuccessfully.

Here is how userArray looks:

const userArray [
  { 
    // I need to show users which have disabled = false first 
    // and then users with disabled = true
    disabled: true,  // <==========
    email: "[email protected]",
    firstName: "Harriet",
    lastName: "Gaither",
    role: "claimsHandlerSupervisor",
    userId: "03VFpxtMWgY1jKDHDLcrWSw1qzx1",
  }, 
  {
   disabled: false,  // <===========
   email: "[email protected]",
   firstName: "Harriet",
   lastName: "Gaither",
   role: "claimsHandlerSupervisor",
   userId: "03VFpxtMWgY1jKDHDLcrWSw1qzx1",
 }, 
]

here is code pen with code with users array and sortBy loadsh function: https://codepen.io/nikolatrajkovicq/pen/pGXdpM?editors=1112

Any adivce is welcome.

like image 937
James Delaney Avatar asked Feb 22 '19 11:02

James Delaney


2 Answers

You can use sort like this:

const userArray=[{disabled:true,email:"[email protected]",firstName:"Harriet",lastName:"Gaither",role:"claimsHandlerSupervisor",userId:"03VFpxtMWgY1jKDHDLcrWSw1qzx1",},{disabled:false,email:"[email protected]",firstName:"Harriet",lastName:"Gaither",role:"claimsHandlerSupervisor",userId:"03VFpxtMWgY1jKDHDLcrWSw1qzx1",},]

userArray.sort((a,b) => a.disabled - b.disabled)
console.log(userArray)

You can just subtract the boolean property inside the compareFunction. This works because of coercion

true - false === 1
false - true === -1
true - true === 0
like image 112
adiga Avatar answered Sep 17 '22 14:09

adiga


You can use sort

const userArray = [{disabled:true,email:"[email protected]",firstName:"Harriet",lastName:"Gaither",role:"claimsHandlerSupervisor",userId:"03VFpxtMWgY1jKDHDLcrWSw1qzx1",},{disabled:false,email:"[email protected]",firstName:"Harriet",lastName:"Gaither",role:"claimsHandlerSupervisor",userId:"03VFpxtMWgY1jKDHDLcrWSw1qzx1",},{disabled:true,email:"[email protected]",firstName:"Hrriet",lastName:"Gither",role:"claisHandlerSupervisor",userId:"0VFpxtMWgY1jKDHDLcrWSw1qzx1",},]

let op = userArray.sort(({disabled:A}, {disabled:B})=> A-B)

console.log(op)
like image 39
Code Maniac Avatar answered Sep 19 '22 14:09

Code Maniac