javascript - 使用 jquery 构建自动完成功能时遇到问题

Question

我正在尝试从头开始创建我自己的自动完成功能。下面的代码检查 result 类中的结果。然后 result 类中的值循环遍历 name 类。如果特定字符串匹配，则添加一个名为 display

的类

我现在遇到的问题是类 display 只有在完全匹配而不是部分匹配时才会被添加(这意味着我必须完成整个字符串)。如果我尝试删除或删除 input textfield 中的值，它似乎不会删除当前添加的类

$('.name-box').on("input", function() {
  let value = $(this).val();
  let result = $(this).text(value);
  $('.result').text(value);

  // $(this).find('.name-' + val).addClass('display');
  $('.name-list .name').each(function() {
    if ($('.result').text() == $(this).text()) {
      $(this).addClass('display');
    } else if ($('.result').val() != $(this).val()) {
      $(this).removeClass('display');
    }
  })
});

/* http://meyerweb.com/eric/tools/css/reset/ 
   v2.0 | 20110126
   License: none (public domain)
*/

html, body, div, span, applet, object, iframe,
h1, h2, h3, h4, h5, h6, p, blockquote, pre,
a, abbr, acronym, address, big, cite, code,
del, dfn, em, img, ins, kbd, q, s, samp,
small, strike, strong, sub, sup, tt, var,
b, u, i, center,
dl, dt, dd, ol, ul, li,
fieldset, form, label, legend,
table, caption, tbody, tfoot, thead, tr, th, td,
article, aside, canvas, details, embed, 
figure, figcaption, footer, header, hgroup, 
menu, nav, output, ruby, section, summary,
time, mark, audio, video {
	margin: 0;
	padding: 0;
	border: 0;
	font-size: 100%;
	font: inherit;
	vertical-align: baseline;
}
/* HTML5 display-role reset for older browsers */
article, aside, details, figcaption, figure, 
footer, header, hgroup, menu, nav, section {
	display: block;
}
body {
	line-height: 1;
}
ol, ul {
	list-style: none;
}
blockquote, q {
	quotes: none;
}
blockquote:before, blockquote:after,
q:before, q:after {
	content: '';
	content: none;
}
table {
	border-collapse: collapse;
	border-spacing: 0;
}

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<form>
  <input class="name-box" type="text" />
</form>

<ul class="name-list">
  <li class="name name-noeldelacruz" data-bindhandle="@noeldelacruz">@noeldelacruz</li>
  <li class="name name-john" data-bindhandle="@john">@john</li>
  <li class="name name-joe" data-bindhandle="@joe">@joe</li>
  <li class="name name-james" data-bindhandle="@james">@james</li>
  <li class="name name-jake" data-bindhandle="@jake">@jake</li>
  <li class="name name-jade" data-bindhandle="@jade">@jade</li>
</ul>

<div class="result"></div>

Answer 1

你可以像这样检查部分匹配:

if ($(this).text().includes($('.result').text())) {
  $(this).addClass('display');
} else {
  $(this).removeClass('display');
}