autocomplete show all options on focus
You have to set minChars to be 0, like this:
$('.autocompleteTime').autocomplete($sessionTimes, {minChars: 0});
Also note that you don't have to start variable name with a $, you could just write sessionTimes everywhere you use it and it would be okay. Probably coming from a PHP background? :)
This is the correct answer:
$('.autocompleteTime').autocomplete($sessionTimes, {minChars: 0})
.focus(function () {
$(this).autocomplete('search', $(this).val())
});
The selected answer is a bit old and didn't really work for me, so what worked for me was this:
$('#selector')
//use minLength when initializing so that empty searches work
.autocomplete({..., minLength: 0})
//trigger the search on focus
.focus(function(){
$(this).autocomplete('search', $(this).val());
})
Credits to the comment by @notJim above and this question: Display jquery ui auto-complete list on focus event, and to me