jQuery Capitalize First Letter of String

In this tutorial we will learn how to Capitalize First Letter of String with jQuery. To make sure that first letter of string is a capital letter we can use jQuery css() method or attr() method along with CSS text-transform property.

CSS text-transform property

CSS text-transform-property is used to control the capitalization of text.

If text-transform property is set to capitalize, it will convert only the first letter of text to uppercase.

jQuery css() Method

jQuery css() Method sets or returns CSS properties of selected HTML element.

In this example we can use css() Method to set the text-transform property of text to capitalize.

<!DOCTYPE html>
<html>
<head>
<title>jQuery Capitalize First Letter of String</title> 
<script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>      
</head>    
<body>
    
<input type="text" id="string">    
<button id="btn">Capitalize First Letter</button> 
    
<script>
$(document).ready(function(){
    $('#btn').click(function(){
       
        $('#string').css('text-transform','capitalize');
        
    });
});    
</script>    
</body>
</html>

jQuery attr() Method

jQuery attr() Method sets or returns the values of the attributes of HTML tags.

In this example attr() Method is used to set the class of input tag to capitalize it's first letter of string.

<!DOCTYPE html>
<html>
<head>
<title>jQuery First Letter Capital</title> 
<script src="https://code.jquery.com/jquery-3.5.1.min.js"></script>  
<style>
.capital
{
text-transform: capitalize;    
}
</style>    
</head>    
<body>
    
<input type="text" id="string">    
<button id="btn">Capitalize First Letter</button> 
    
<script>
$(document).ready(function(){
    $('#btn').click(function(){
       
        $('#string').attr('class','capital');
        
    });
});    
</script>    
</body>
</html>

Demo

Video Tutorial

Watch video tutorial on jQuery string first letter uppercase.

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