How to make jqueryui autocomplete actually autocomplete?

You would expect AutoComplete to "complete" the phrase you are typing, but instead it "sugge开发者_如何学编程sts" based on the characters you are typing.

For example: http://jqueryui.com/demos/autocomplete/

When you type "a" in the input box:

I expect it to "complete" and display: ActionScript AppleScript

Actually, it "suggests" and displays any word that contains that letter.

Here's an example on how you would expect it to work: http://developer.yahoo.com/yui/examples/autocomplete/ac_basic_array.html

How would you get jQueryUI autocomplete to work like that?

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Consider using the (deprecated, but still usefull) jQuery autocomplete plugin which does support what you want using the autoFill option