如何使用预先输入的例子？

Question

我想使用 this 示例，因此请按照 html 页面创建：

<!DOCTYPE html>
<html lang="en">
  <head>
    <meta charset="utf-8">
    <meta http-equiv="X-UA-Compatible" content="IE=edge">
    <meta name="viewport" content="width=device-width, initial-scale=1">
    <title>Bootstrap 101 Template</title>

    <!-- Bootstrap -->
    <link href="css/bootstrap.min.css" rel="stylesheet">
    <script src="js/typeahead.bundle.js"></script>
    <!-- HTML5 shim and Respond.js for IE8 support of HTML5 elements and media queries -->
    <!-- WARNING: Respond.js doesn't work if you view the page via file:// -->
    <!--[if lt IE 9]>
      <script src="https://oss.maxcdn.com/html5shiv/3.7.2/html5shiv.min.js"></script>
      <script src="https://oss.maxcdn.com/respond/1.4.2/respond.min.js"></script>
    <![endif]-->
    <script src="http://code.jquery.com/jquery-1.11.1.min.js"></script>
    <script src="http://cdn.datatables.net/1.10.4/js/jquery.dataTables.min.js"></script>

    <!-- jQuery (necessary for Bootstrap's JavaScript plugins) -->

    <script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>

    <!-- Include all compiled plugins (below), or include individual files as needed -->
    <script src="js/bootstrap.min.js"></script>
  </head>
  <body>
    <div id="the-basics">
    <input class="typeahead" type="text" placeholder="States of USA">
    </div> 
    <script type="text/javascript">
      var substringMatcher = function(strs) {
    return function findMatches(q, cb) {
    var matches, substrRegex;

    // an array that will be populated with substring matches
    matches = [];

    // regex used to determine if a string contains the substring `q`
    substrRegex = new RegExp(q, 'i');

    // iterate through the pool of strings and for any string that
    // contains the substring `q`, add it to the `matches` array
    $.each(strs, function(i, str) {
    if (substrRegex.test(str)) {
    // the typeahead jQuery plugin expects suggestions to a
    // JavaScript object, refer to typeahead docs for more info
    matches.push({ value: str });
    }
    });

    cb(matches);
    };
    };

    var states = ['Alabama', 'Alaska', 'Arizona', 'Arkansas', 'California',
    'Colorado', 'Connecticut', 'Delaware', 'Florida', 'Georgia', 'Hawaii',
    'Idaho', 'Illinois', 'Indiana', 'Iowa', 'Kansas', 'Kentucky', 'Louisiana',
    'Maine', 'Maryland', 'Massachusetts', 'Michigan', 'Minnesota',
    'Mississippi', 'Missouri', 'Montana', 'Nebraska', 'Nevada', 'New Hampshire',
    'New Jersey', 'New Mexico', 'New York', 'North Carolina', 'North Dakota',
    'Ohio', 'Oklahoma', 'Oregon', 'Pennsylvania', 'Rhode Island',
    'South Carolina', 'South Dakota', 'Tennessee', 'Texas', 'Utah', 'Vermont',
    'Virginia', 'Washington', 'West Virginia', 'Wisconsin', 'Wyoming'
    ];

    $('#the-basics .typeahead').typeahead({
    hint: true,
    highlight: true,
    minLength: 1
    },
    {
    name: 'states',
    displayKey: 'value',
    source: substringMatcher(states)
    }); 
    </script>
  </body>
</html>

并从 here 和其他 bootstrap 官方网站下载所有链接文件 typeahead.bundle.min.js。但我遇到了后续错误

Uncaught TypeError: Cannot read property 'isArray' of undefined
Uncaught TypeError: undefined is not a function

你能帮我看看这个例子怎么用吗？

Answer 1

您的问题是您加载 JS 库的顺序。

放

<script src="js/typeahead.bundle.js"></script>

在

之后

<script src="https://ajax.googleapis.com/ajax/libs/jquery/1.11.1/jquery.min.js"></script>

或

之后

<script src="js/bootstrap.min.js"></script>

任何一种方法都可以解决您的问题。

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