I have array value and object for data mapping. reduce method is not working for object mapping, here is sample data.
the array value is
let array = [ "payload", "offer", "application_id" ]
object value is
let data = { organization_id: 4002400004, organization_name: 'Velocity Global Integration Sandbox', action: 'offer_updated', payload: { offer: { id: 4524843004, application_id: 31948577004, user_id: 4123647004, version: 1, sent_on: null, resolved_at: '2022-05-19T06:21:25.084Z', start_date: '2022-05-17', notes: null, job_id: 4298940004, offer_status: 'Accepted' }, "resume": { name: "manikandan" } } }
need to form new object with the response
let payload = { offer: { application_id: 343645656 } }
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Answer
While I usually avoid recommending the usage of eval
, this specific case seems to be a valid use-case for eval
. You can simply extract the first item of the array as a variable name and extract the subsequent array items as levels:
let array = [ "payload", "offer", "application_id" ] let data = { organization_id: 4002400004, organization_name: 'Velocity Global Integration Sandbox', action: 'offer_updated', payload: { offer: { id: 4524843004, application_id: 31948577004, user_id: 4123647004, version: 1, sent_on: null, resolved_at: '2022-05-19T06:21:25.084Z', start_date: '2022-05-17', notes: null, job_id: 4298940004, offer_status: 'Accepted' }, "resume": { name: "manikandan" } } } /*let payload = { offer: { application_id: 343645656 } }*/ function getNestedObject(data, array, index) { return {[array[index]] : ((index < array.length - 1) ? getNestedObject(data[array[index]], array, index + 1) : data[array[index]])}; } eval(`var ${array[0]} = getNestedObject(data[array[0]], array, 1)`); console.log(payload);