How to convert hyphens to camel case in JavaScript ?

Given a string containing hyphens (-) and the task is to convert hyphens (-) into camel case of a string using JavaScript.

Approach:

  • Store the string containg hyphens into variable.
  • Then use the RegExp to replace the hyphens and make the first letter of words as upperCase.

Example 1: This example converts the hyphens (‘-‘) into camel case by using RegExp and replace() method.



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<!DOCTYPE HTML> 
<html> 
    <head> 
        <title> 
            How to convert hyphens to 
            camel case in JavaScript ?
        </title>
    </head> 
      
    <body style = "text-align:center;"> 
          
        <h1 style = "color:green;" > 
            GeeksForGeeks 
        </h1> 
          
        <p id = "GFG_UP" style =
            "font-size: 16px; font-weight: bold;">
        </p>
          
        <button onclick = "gfg_Run()"> 
            Click here
        </button>
          
        <p id = "GFG_DOWN" style =
            "color:green; font-size: 20px; font-weight: bold;">
        </p>
          
        <script>
            var el_up = document.getElementById("GFG_UP");
            var el_down = document.getElementById("GFG_DOWN");
              
            var str = "this-is-geeks-for-geeks";
              
            el_up.innerHTML = str;
              
            function gfg_Run() {
                el_down.innerHTML = str.replace(/-([a-z])/g, 
                    function (g) { return g[1].toUpperCase(); });
            }         
        </script> 
    </body> 
</html>

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Output:


    

  • 
Before clicking on the button:
    
Image

    • 

  • 
After clicking on the button:
    
Image

    • 



Example 2: This example is quite similar to previous one and converts the hyphens (‘-‘) to camel case by using RegExp and replace() method.











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<!DOCTYPE HTML>  


<html>  


    <head>  


        <title>  


            How to convert hyphens to  


            camel case in JavaScript ? 


        </title> 


    </head>  


      


    <body style = "text-align:center;">  


          


        <h1 style = "color:green;" >  


            GeeksForGeeks  


        </h1>  


          


        <p id = "GFG_UP" style = 


            "font-size: 16px; font-weight: bold;"> 


        </p> 


          


        <button onclick = "gfg_Run()">  


            Click here 


        </button> 


          


        <p id = "GFG_DOWN" style = 


            "color:green; font-size: 20px; font-weight: bold;"> 


        </p> 


          


        <script> 


            var el_up = document.getElementById("GFG_UP"); 


            var el_down = document.getElementById("GFG_DOWN"); 


              


            var str = "-a-computer-science-portal-for-geeks"; 


              


            el_up.innerHTML = str; 


              


            function gfg_Run() { 


                el_down.innerHTML = str.replace(/-([a-z])/g,  


                    function (m, s) { 


                        return s.toUpperCase(); 


                    }); 


            }          


        </script>  


    </body>  


</html> 



















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Output:


    

  • 
Before clicking on the button:
    
Image

    • 

  • 
After clicking on the button:
    
Image

    • 




          
          
          
          

            

    

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