How can I turn an array object into an object?

June 21, 2022

I want to put an array object called hello into a constant called answer. At this time, I want to change the key value of the answer to the value key of hello and the value of the answer to the label value of hello.

how can i do that? i was thinking object entries but i couldn’t do that….
is it possible??

this is my code

const hello = [
{ label: 'one', value: 'Tangerinefeed' },
{ label: 'two', value: 'dryexamfeed' },
{ label: 'three', value: 'wetfeed' },
{ label: 'forth', value: 'sawdust' },
{ label: 'five', value: 'etc' },
] ;

expected answer

const answer = {Tangerinefeed: 'one', dryexamfeed: 'two', wetfeed: 'three', sawdust: 'forth', etc: 'five'}

>Solution :

You can use reduce to achieve it

const hello = [
{ label: 'one', value: 'Tangerinefeed' },
{ label: 'two', value: 'dryexamfeed' },
{ label: 'three', value: 'wetfeed' },
{ label: 'forth', value: 'sawdust' },
{ label: 'five', value: 'etc' },
] ;

const finalResult = hello.reduce((result, item) => {
  result[item.value] = item.label
  return result
}, {})

console.log(finalResult)