files/regexp.html

<!DOCTYPE html>
<html>
  <head>
    <title>Regular-Expression in JS</title>
  </head>
  <script>
    // ---------------
    // Using search()
    // ---------------

    var str = 'Information Technology & Management';
    console.log('Using search(): '+ str.search(/Technology/i)); // This method searches a string for a specified value and returns the position of the match

    // -----------------
    // Using replace()
    // -----------------

    console.log('Using replace(): '+'12-30-45'.replace(/-/g, ':')); // 12:30:45

    // ---------------
    // Using match()
    // ---------------

    var re = /\w+\s/g;
    var str = 'Information Technology & Management';
    var arr = str.match(re); // if the match found, return the match as an array
    console.log('Using match(): '+arr);

    // --------------
    // Using exec()
    // --------------
    // It searches a string for a specified pattern, and returns the found text as an object.

    console.log('Using exec(): '+/Technology/.exec('Information Technology & Management'));

    // ---------------
    //  Using test()
    // ---------------

     var str = 'Regular Expression in JavaScript';
     var patt = new RegExp('in');
     var res = patt.test(str); // This method returns true if it finds a match, otherwise it returns false.
     console.log('Text found in string? '+ res);
  </script>
  <body>
    Regular Expression in JavaScript
  </body>
</html>