Jquery autocomplete plug-in (non-jquery UI which), minChars is set to 0, double-click the input box still does not display all data?

for example, code:

var dataArr = new Array("a","b","c")
$("-sharpuserInput").autocomplete({
    minChars: 0,
    lookup: dataArr,
    onSelect: function(){}
})
Mar.05,2021
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