Exclude some areas on filtering the DOM with jQuery

user_8799548 0
Viewed 131

I'm filtering the entire DOM to replace some strings with other strings.

For this I wrote the following code:

$('body :not(script)').contents().filter(function() {
  return this.nodeType === 3;
}).replaceWith(function() {
  return this.nodeValue.replace('T 0','T  0');
});

How can I exclude some areas? For example I want the DIV with the class .example not to be considered.

I tried the following:

$('body :not(script):not(.example)').contents().filter(function() {
  return this.nodeType === 3;
}).replaceWith(function() {
  return this.nodeValue.replace('T 0','T  0');
});

Why does this not seem to work?

jquery javascript
1 Answers

Right now, you're telling jQuery to exclude the node .example, which has children nodes, that WILL be included.

In your :not() selector add an * after the class. This will tell jQuery to exclude all nodes underneath the parent node.

In CSS the * is a universal selector

The CSS universal selector (*) matches elements of any type.

Here's a working version: (Please note that I changed the   to - to visually show the change)

$( "input:not(:checked) + span" ).css( "background-color", "yellow" );
$( "input").attr( "disabled", "disabled" );

$('body :not(script):not(div.example *)').contents().filter(function() {
  return this.nodeType === 3;
}).replaceWith(function() {
  return this.nodeValue.replace('T 0','T--0');
});
<!doctype html>
<html lang="en">
<head>
  <meta charset="utf-8">
  <title>not demo</title>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
</head>
<body>

<div class="example">
  <p>Remains the same:</p>
  <h1>T 0</h1>
</div>

<div>
  <p>Changes:</p>
  <h1>T 0</h1>
</div>
 
</body>
</html>

user_175324820
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