LWC: customer360RelatedContacts: JavaScript

import { LightningElement, api, wire } from 'lwc';
import { NavigationMixin } from 'lightning/navigation';
import getCaseAccountContact from '@salesforce/apex/customer360CommunicationsHelper.getCaseAccountContact';

//Columns to show the Account Name and the Alternative Billing Name
const columns = [
    { 
        label: 'Account Name', 
        fieldName: 'AccountId', 
        type: 'url',
        typeAttributes: {
            label: { fieldName: 'AccountName' }, 
            target: '_self' 
        }
    },
    { 
        label: 'Alternative Billing Name', 
        fieldName: 'AlternativeBillingName', 
        type: 'url',
        typeAttributes: {
            label: { fieldName: 'ContactAlternativeBillingName' }, 
            target: '_self'
        } 
    },
];

//URL variables
const ACCOUNT_URL = '/lightning/r/Account/';
const CONTACT_URL = '/lightning/r/Contact/';
const VIEW_URL = '/view';

export default class Customer360Communications extends NavigationMixin(LightningElement) {
    columns = columns;
    @api recordId; 
    contact;

    //Text Variables
    contactPreferencesFormatText = 'Communications format - ';
    contactPreferencesText = 'Communication preference -  ';
    marketingConsentText = 'Marketing consent - ';
    
    @wire(getCaseAccountContact, { caseId: '$recordId' })
    wiredData({ error, data }) {
        if (data) {
            this.caseAccountContactData = data.map(contact => ({
                ...contact,
                AccountId: contact.AccountId ? ACCOUNT_URL + contact.AccountId + VIEW_URL : '', 
                AlternativeBillingName: contact.ContactAlternativeBillingName ? CONTACT_URL + contact.ContactId + VIEW_URL : '',
                strContactURL: CONTACT_URL + contact.ContactId + VIEW_URL,
                strMarketingConsent: this.marketingConsentText + contact.ContactOpted,
                strContactPrefs: this.contactPreferencesText + contact.ContactPreferences,
                strCommsPrefFormat: this.contactPreferencesFormatText + contact.PreferredCommunicationFormat
            }));
            this.contact = this.caseAccountContactData[0];
        } else if (error) {
            console.error('Error fetching data:', error);
        }
    }
}