I am trying to dynamically update option in a lightning-combobox standard component. I passed to the component a list of option which is annotated with the @track decorator but the combobox won't update when I push new options in this list.
Template :
<lightning-combobox name="progress" label="Type" value={selectedType} options={selectOptions} onchange={handleChange}></lightning-combobox> Controller :
import {LightningElement, track, wire} from 'lwc'; export default class TsrWhat extends LightningElement { @wire(getList, {recordType: 'Timesheet_Report_What'}) lists({ error, data }) { if (data) { for(const list of data){ const option = { label: list.Name, value: list.Data_Store__c }; this.selectOptions.push(option); } } else if (error) { console.error(error); } } @track selectOptions = [ {label: "All the business actvities", value: "All BA"}, {label: "List of all the business actvities", value: "ListRoot"} ]; } 
