Demo code for typeahead is in incorrect style/syntax.

Prerequisites

[ ] I have searched for similar issues in both open and closed tickets and cannot find a duplicate.
[ ] The issue still exists against the latest master branch of yii2-widgets.
[ ] This is not an usage question. I confirm having gone through and read the documentation and demos.
[ ] This is not a general programming / coding question. (Those should be directed to the webtips Q & A forum).
[ ] I have attempted to find the simplest possible steps to reproduce the issue.
[ ] I have included a failing test as a pull request (Optional).

Steps to reproduce the issue

http://demos.krajee.com/widget-details/typeahead#settings
Scroll to pluginEvents

Expected behavior and actual behavior

When I follow those steps, I see...

pluginEvents = [
    "typeahead:active" => "function() { log("typeahead:active"); }",
    "typeahead:idle" => "function() { log("typeahead:idle"); }",
    "typeahead:open" => "function() { log("typeahead:open"); }",
    "typeahead:close" => "function() { log("typeahead:close"); }",
    "typeahead:change" => "function() { log("typeahead:change"); }",
    "typeahead:render" => "function() { log("typeahead:render"); }",
    "typeahead:select" => "function() { log("typeahead:select"); }",
    "typeahead:autocomplete" => "function() { log("typeahead:autocomplete"); }",
    "typeahead:cursorchange" => "function() { log("typeahead:cursorchange"); }",
    "typeahead:asyncrequest" => "function() { log("typeahead:asyncrequest"); }",
    "typeahead:asynccancel" => "function() { log("typeahead:asynccancel"); }",
    "typeahead:asyncreceive" => "function() { log("typeahead:asyncreceive"); }",
];

I was expecting...

                        'pluginEvents' => [
                            "typeahead:active" => "function() { console.log(\"typeahead:active\"); }",
                            "typeahead:idle" => "function() { console.log(\"typeahead:idle\"); }",
                            "typeahead:open" => "function() { console.log(\"typeahead:open\"); }",
                            "typeahead:close" => "function() { console.log(\"typeahead:close\"); }",
                            "typeahead:change" => "function(e, suggestion) { console.log(\"typeahead:change\", e, suggestion); }",
                            "typeahead:render" => "function() { console.log(\"typeahead:render\"); }",
                            "typeahead:select" => "function() { console.log(\"typeahead:select\"); }",
                            "typeahead:autocomplete" => "function() { console.log(\"typeahead:autocomplete\"); }",
                            "typeahead:cursorchange" => "function() { console.log(\"typeahead:cursorchange\"); }",
                            "typeahead:asyncrequest" => "function() { console.log(\"typeahead:asyncrequest\"); }",
                            "typeahead:asynccancel" => "function() { console.log(\"typeahead:asynccancel\"); }",
                            "typeahead:asyncreceive" => "function() { console.log(\"typeahead:asyncreceive\"); }",
                        ],

also include to example a function arguments is better

Environment

Browsers

[ ] Google Chrome
[ ] Mozilla Firefox
[ ] Internet Explorer
[ ] Safari

Operating System

[ ] Windows
[ ] Mac OS X
[ ] Linux
[ ] Mobile

Libraries

jQuery version:
yii2-widgets version:

Isolating the problem

[ ] This bug happens on the demos page
[ ] The bug happens consistently across all tested browsers
[ ] This bug happens when using yii2-widgets without other plugins.

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kartik-v / yii2-widgets