Show suggestions on focus with minLength=0 does not work

[tqdo]

I am trying to show the first 15 suggestions when the search box is focused. Below is my code and it does not work. Really appreciate any help

let searchMaster = $('#searchBoxMaster')
        searchMaster.typeahead({
                hint: true,
                highlight: true,
                minLength: 0,
            },
            {
                name: 'Indicators',
                source: suggestionName,
                limit: 15,
                displayKey: 'value',
                templates: {
                    suggestion: function (data) {
                        return '<div class="line_master_search"><div class="inlinee1">' + data.row + '</div>&nbsp; - &nbsp;<div class="inlinee2">'
                            + data.name + '</div></div>';
                    },
                },

            });