hello,
can you please me out of this 

html:
<template>
    <table class="slds-table slds-table_cell-buffer slds-table_bordered">
        <template if:true={record}>
        <tr>
            <td><b>FirstName</b></td>
            <td><b>LastName</b></td>
            <td><b>Phone</b></td>
        </tr>
        <template for:each={record} for:item="acc">
            <tr key={acc.Id}>
                <td>
                    {acc.FirstName}
                </td>
                <td>
                    {acc.LastName}
                </td>
                <td>
                    {acc.Phone}
                </td>
               
            </tr>
        </template>
        </template>
    </table>
    <lightning-button
            class="slds-m-top_small"
            variant="brand"
            type="submit"
            name="update"
            label="Update"
        >
        </lightning-button>
</template>

js:

import { LightningElement,api,wire,track } from 'lwc';
import getContacts from '@salesforce/apex/contactController.getContacts';
import { ShowToastEvent } from 'lightning/platformShowToastEvent';
import { refreshApex } from '@salesforce/apex';
import { updateRecord } from 'lightning/uiRecordApi';
import FIRST_NAME_FIELD from '@salesforce/schema/Contact.FirstName';
import LAST_NAME_FIELD from '@salesforce/schema/Contact.LastName';
import ID_FIELD from '@salesforce/schema/Contact.Id';
import PHONE_FIELD from '@salesforce/schema/Contact.Phone';
export default class contactAccountInfo extends LightningElement {
  @api recordId;
  @track record;
  @track error;
 
  fields = [LAST_NAME_FIELD,FIRST_NAME_FIELD, ID_FIELD,PHONE_FIELD];
  @wire(getContacts, { accId: '$recordId' })
  cons({error,data}){
    console.log('recordId',this.recordId);
    if (data) {
        console.log('>>>data: ' + JSON.stringify(data));
        this.record = data;
        this.error = undefined;
        console.log('recordId',this.record);
    } else if (error) {
        this.error = error;
        this.data = undefined;
    }
}
handleSubmit(event) {
    console.log('onsubmit event recordEditForm'+ event.detail.fields);
}
handleSuccess(event) {
    console.log('onsuccess event recordEditForm', event.detail.id);
}
updateContact(event){
    this.contactId = event.target.dataset.recordid;
     const recordInput = {
         fields: {
             [Id.fieldApiName]: this.contactId,
             [contactFirstName.fieldApiName]: this.firstName,
             [contactLastName.fieldApiName]: this.lastName,
             [contactPhone.fieldApiName]: this.phone,
         }
     };
     updateRecord(recordInput).then((resolve) => {
        this.dispatchEvent(
            new ShowToastEvent({
                title: 'Success',
                message: 'Record Updated',
                variant: 'success',
            }),
        );
        return refreshApex(this.wiredContactsResult);
    }, (reason) => {
        console.log("Reason-->",reason);
    })
    //Show error when record does not updated
    .catch(error => {
      console.log("Error:--->  ",error);
    });
  }
 
}how i can update multiple record at a time?