Syntax error What is the best way to do optional function parameters in JavaScript?

What is the best way to do optional function parameters in JavaScript?

To include optional function parameters in JavaScript, you can try the following,

function myFunc(a, b = 0) {
   // function body
}

Example

You can try to run the following code to learn how to include optional function parameters −

<html>
   <body>
      <script>
         // default is set to 1
         function inc(val1, inc = 1) {
            return val1 + inc;
         }
         
         document.write(inc(10,10));
         document.write("<br>");
         document.write(inc(10));
      </script>
   </body>
</html>
Updated on: 2020-06-23T06:49:42+05:30

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