SELECTORS - :contains(text) Selector

The ':contains(text) Selector' is used to select the elements, which matches the text specified.

Say for example, we have 5  elements in our HTML document.

<p class = "para1"> First Paragraph </p>
<p class = "para2"> Second Paragraph </p>
<p class = "para3"> Third Paragraph </p>
<p class = "para4"> Fourth Line </p>
<p class = "para5"> Fifth Part </p>

And we want to search, which all  elements has the word Paragraph.

Let us see with the below example.

Example :

<html>
  	<head>
    	<title> My First Programme </title>
  	</head>

  	<body>
    	<h1> JQuery </h1>
    	
    	<div class = "newClass">
    		<p class = "para1"> First Paragraph </p>
    		<p class = "para2"> Second Paragraph </p>
    		<p class = "para3"> Third Paragraph </p>
    		<p class = "para4"> Fourth Line </p>
   		 	<p class = "para5"> Fifth Part </p>
    	</div>	
    	
    	<button> Click me </button>

      	<script src = "https://cdnjs.cloudflare.com/ajax/libs/JQUERY/3.3.1/jquery.min.js"> </script>
	  
      	<script>
      
			$('button').click( function() { 
            	$('p:contains("Paragraph")').text("The word with paragraph got replaced")
            });
            
      	</script>      
  	</body>
</html>

Output :

So, if you see the above code. We can see that there are five  elements.

<div class = "newClass">
	<p class = "para1"> First Paragraph </p>
	<p class = "para2"> Second Paragraph </p>
	<p class = "para3"> Third Paragraph </p>
	<p class = "para4"> Fourth Line </p>
	<p class = "para5"> Fifth Part </p>
</div>

And on button click, the contents of first, second and third element gets replaced with 'The word with paragraph got replaced' because they contain the word 'Paragraph'.

And this happened with the 'p:contains("Paragraph")' element selector.

$('button').click( function() {
	$('p:contains("Paragraph")').text("The word with paragraph got replaced")
});

The moment the button is clicked, JQuery statement gets triggered.

$('p:contains("Paragraph")').text("The word with paragraph got replaced")

And it searches for the  elements that has the word 'Paragraph'.

And it finds the first, second and third elements has the word 'Paragraph'.

<p class = "para1"> First Paragraph </p>
<p class = "para2"> Second Paragraph </p>
<p class = "para3"> Third Paragraph </p>

So, the contents of the above  elements hets replaced.

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