Let's assume we are getting list of records from the apex to js controller and for some reasons if we want to add new row how can we add to it we can see below.
import { LightningElement, api, track, wire } from "lwc"; import fetchActivities from "@salesforce/apex/CancelFlowCntrl.fetchCanActivities"; const columns = [ { label: 'ticketvalue', fieldName: 'totalTicketvalue' }, { label: 'refundedAmount', fieldName: 'totalRefundedAmount' }, { label: 'cancellationCharges', fieldName: 'totCancellationCharges' }, ]; export default class ActivitiesFlow extends LightningElement { @track allActivitiesData; @wire(fetchActivities, { recdId: '$sfrecordId' }) wiredActivities({ error, data }) { if (data) { this.allActivitiesData = data; var newItem = {"totalTicketvalue": 100,"totalRefundedAmount": 90,"totCancellationCharges":10}; this.allActivitiesData.push(newItem); } else if (error) { this.error = error; this.allActivitiesData = undefined; } } }
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