Conditional rendering of object INSIDE array

Question

I have an array cars of objects. I want to insert the object with header: AUDI only if audi is true.

var audi = false;
var cars= [
   {header: 'fiat',accessor: row},
   {header: 'audi',accessor: row},
   {header: 'bmw',accessor: row}
]

I tried with ternary operator but cars doesn't accept empty object {}. So is there a way to simulate what we usually do for conditional rendering? (ex: audi &&{...} ) THANKS <3

var audi = false;
var cars= [
   {header: 'fiat',accessor: row},
   audi?{header: 'audi',accessor: row}:{},
   {header: 'bmw',accessor: row}
]

Nathanael Demacon · Accepted Answer · 2021-11-15 09:48:28Z

3

You could use the filter method:

var audi = false;
var cars= [
   {header: 'fiat',accessor: row},
   {header: 'audi',accessor: row},
   {header: 'bmw',accessor: row}
].filter(car => audi || car.header !== 'audi')

Or spread operator:

var audi = false;
var cars= [
   {header: 'fiat',accessor: row},
   ...(audi ? [
      {header: 'audi',accessor: row}
   ] : []),
   {header: 'bmw',accessor: row}
]

answered Nov 15, 2021 at 9:48

Nathanael Demacon

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