Jquery自动完成从第一个字符开始 [英] Jquery autocomplete start from first character

问题描述

我认为之前有人问过这个问题，但我无法使用我的脚本。
当我开始输入输入字段时，例如我以字母AI开头，每个标签都包含字母A.

I think this is asked by someone before but I can't get it to work with my script. When I start typing in the input field and for example I start with the letter A I get every Label that contains the letter A.

我只想要标签以字母A开头。

I only want the Labels that Start with the letter A.

这是我的剧本：

<link rel="stylesheet" href="http://code.jquery.com/ui/1.10.3/themes/smoothness/jquery-ui.css" />
<script src="http://code.jquery.com/jquery-1.9.1.js"></script>
<script src="http://code.jquery.com/ui/1.10.3/jquery-ui.js"></script>
<style>
.ui-autocomplete {
max-height: 100px;
overflow-y: auto;
/* prevent horizontal scrollbar */
overflow-x: hidden;
}
/* IE 6 doesn't support max-height
* we use height instead, but this forces the menu to always be this tall
*/
* html .ui-autocomplete {
height: 100px;
}
</style>

$(function() {
$( "#tags" ).autocomplete({
source: [{
        label: "Apple",
        value: "http://www.apple.com"},
    {
        label: "Google",
        value: "http://www.google.com"},
    {
        label: "Yahoo",
        value: "http://www.yahoo.com"},
    {
        label: "Bing",
        value: "http://www.bing.com"}],
    minLength: 3,
    select: function(event, ui) {
        event.preventDefault();
        $("#tags").val(ui.item.label);
        $("#selected-tag").val(ui.item.label);
        window.location.href = ui.item.value;
    }
    ,
    focus: function(event, ui) {
        event.preventDefault();
        $("#tags").val(ui.item.label);
    }
});
});

这是我的html：

<div class="ui-widget">
<label for="tags" style="float:left; margin-right:5px; font-size:12px; margin-top:10px; margin-left:55px; text-align:right;">Search Engines:</label>
<input type="text" placeholder="Search for engine..." id="tags" style="width:150px; padding:3px; margin:9px 0 0 0; float:right;" />
</div>

我的脚本现在可以这样吗？

Is this possible with my script like it is now?

提前致谢

推荐答案

试试这个

var data = [
    {
    label: "Apple",
    value: "http://www.apple.com"
    },
    {
    label: "Google",
    value: "http://www.google.com"
   },
   {
    label: "Yahoo",
    value: "http://www.yahoo.com"
   },
   {
    label: "Bing",
    value: "http://www.bing.com"
   }];


   $(function() {
   $( "#tags" ).autocomplete({
          source: function( request, response ) {
               var matcher = new RegExp( "^" + $.ui.autocomplete.escapeRegex( request.term ), "i" );
             response( $.grep( data, function( item ){
                 return matcher.test( item.label );
             }) );
    },
    minLength: 1,
    select: function(event, ui) {
       event.preventDefault();
       $("#tags").val(ui.item.label);
       $("#selected-tag").val(ui.item.label);
       window.location.href = ui.item.value;
    },
   focus: function(event, ui) {
       event.preventDefault();
       $("#tags").val(ui.item.label);
   }
 });
});

SEE DEMO

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