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jQuery选择器

JQuery选择器​

Input元素中 对name属性进行筛选​

Example From Here

$( "input[name!='newsletter']" )

$("input").not("[name=newsletter]")

<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>attributeNotEqual demo</title>
  <script src="https://code.jquery.com/jquery-3.5.0.js"></script>
</head>
<body>

<div>
  <input type="radio" name="newsletter" value="Hot Fuzz">
  <span>name is newsletter</span>
</div>
<div>
  <input type="radio" value="Cold Fusion">
  <span>no name</span>
</div>
<div>
  <input type="radio" name="accept" value="Evil Plans">
  <span>name is accept</span>
</div>

<script>
$( "input[name!='newsletter']" ).next().append( "<b>; not newsletter</b>" );
</script>

</body>
</html>

image-20211102230352413

选择属性取反操作​

选取form表单中，div元素id值不为a的子元素中的input

$( "form div:not(#a) input" )

$( "form div:not([id='a']) input" )

<!DOCTYPE html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>attributeNotEqual demo</title>
  <script src="https://code.jquery.com/jquery-3.5.0.js"></script>
</head>
<body>

<form class="">
    <div id="a" class="form-floating mb-3">
      <input type="email" class="form-control rounded-4" id="floatingInput" placeholder="name@example.com">
      <label for="floatingInput">Email address</label>
    </div>
    <div id="b" class="form-floating mb-3">
      <input type="password" class="form-control rounded-4" id="floatingPassword" placeholder="Password">
      <label for="floatingPassword">Password</label>
    </div>

</form>

<script>
    $( "form div:not(#a) input" ).css("background-color","pink");
</script>

</body>
</html>

image-20211102231338241

更多选择器用法请 看这里