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:
  • After clicking on the button:

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:
  • After clicking on the button:


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