Replace number after underscore using regex and replace method - Javascript RegExp

Javascript examples for RegExp:Match Number

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Description

Replace number after underscore using regex and replace method

Demo Code

ResultView the demo in separate window 

<html>
   <head> 
      <meta name="viewport" content="width=device-width, initial-scale=1"> 
      <script type="text/javascript">
    window.onload=function(){/*from   w  w  w . j  a v a 2 s  .  c  o  m*/
var starter = "first_23 another-thing_3 testTest_1 __3 __e";
var specialVal = "SPECIAL";
var re = /(_)(\d+)/g;
var replaced = starter.replace(re, function (match, p1) {
    return p1 + specialVal;
});
console.log(replaced);
    }

      </script> 
   </head> 
   <body>  
   </body>
</html>

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