HTML METHODS - height()

The height() method in JQuery is used to get and set the height of an HTML element.

height() as Getter method

Example :

<html>
  	<head>
    	<title> My First Programme </title>
    	
    	<script src = "https://cdnjs.cloudflare.com/ajax/libs/JQUERY/3.3.1/jquery.min.js"> </script>
  	</head>

  	<body>
    	<h1> JQuery </h1>
    	
    	<p style = "background-color:violet; height:100px"> Hello World </p>
        
        <button> Click it </button> 
	  
      	<script>
      
			$('button').click( function() { 
            	alert("The height of the p element is : "+$('p').height());
            });
            
      	</script>
  	</body>
</html>

Output :

So, if we look at the above code, we have a <p> element.

<p style = "background-color:violet; height:100px"> Hello World </p>

And we have a <button> element,

<button> Click it </button>

And on button click, the JQuery statement gets triggered,

$('button').click( function() {
	alert("The height of the p element is : "+$('p').height());
});

And an alert is generated,

alert("The height of the p element is : "+$('p').height());

Now, if we see the output (i.e. The alert),

You get the height of the <p> element (i.e. 100).

This is because the height() method is used to get the height of the <p> element.

height() as Setter method

Example :

<html>
  	<head>
    	<title> My First Programme </title>
    	
    	<script src = "https://cdnjs.cloudflare.com/ajax/libs/JQUERY/3.3.1/jquery.min.js"> </script>
  	</head>

  	<body>
    	<h1> JQuery </h1>
    	
    	<p style = "background-color:violet;"> Hello World </p>
        
        <button> Click it </button> 
	  
      	<script>

                $('button').click(function(){
                  $('p').height("100px");
                });
                
      	</script>
  	</body>
</html>

Output :

So, if we look at the above code, we have a <p> element.

<p style = "background-color:violet;"> Hello World </p>

And we have a <button> element,

<button> Click it </button>

And on button click, the JQuery statement gets triggered,

$('button').click( function() {
	$('p').height("100px");
});

And the height() method is used to set the height of the <p> element to 100px.

$('p').height("100px");

Now, if we see the output, the height of the <p> element got increased to 100px.

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