character count without space regex javascript code example

Example 1: count word and space in text javascript

<html>
<body>
   <script>
      function countWords(str) {
         str = str.replace(/(^\s*)|(\s*$)/gi,"");
         str = str.replace(/[ ]{2,}/gi," ");
         str = str.replace(/\n /,"\n");
         return str.split(' ').length;
      }
      document.write(countWords("   Tutorix is one of the best E-learning   platforms"));
   </script>
</body>
</html>

Example 2: javascript regex only letters and spaces

//regex expression:
var reg_name_lastname = /^[a-zA-Z\s]*$/;

//Validation to the user_name input field
if(!reg_name_lastname.test($('#user_name').val())){ //
    alert("Correct your First Name: only letters and spaces.");
    valid = false;
}

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Javascript Example

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