javascript - jQuery 自动完成最小长度

Question

自动完成永远不会在输入第一个字符时触发，而是在输入第二个字符时触发。虽然在使用退格后它适用于 minLength = 1。此外，selectFirst:true 在页面加载时绝不会默认为数组中的第一项。

$().ready(function (){ 
       $('#CompanyName').autocomplete({
                 source: companyNames,
                 select: SetLocations, 
                 selectFirst :true,
                 minLength: 0  //corrected as suggested, but still no change
      });
});

有没有人遇到过这种行为。我一无所知，因为我没有任何全局设置/默认值。

Answer 1

您有一些语法错误，document.ready 处理程序缺少大括号(无论如何都已弃用)和选项中的逗号，它应该如下所示:

$(function() {
   $('#CompanyName').autocomplete({
             source: companyNames,
             select: SetLocations, 
             selectFirst: true, //here
             minLength: 0
  });
});

此外，自动完成会在 minLength 个字符后激活，如果您想要立即使用，请使用 0，from the docs :

minLength: The minimum number of characters a user has to type before the Autocomplete activates. Zero is useful for local data with just a few items. Should be increased when there are a lot of items, where a single character would match a few thousand items.

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