Javascript code help

omega18

Well-known member
  • Jul 16, 2018
    580
    218
    63
    machan pahala thiyena calculations dekata javascript walin code tika kiyanna puluwan kenek innawa nam dapanko

    Ln1w0s3.jpg
     

    ArunaTelshan

    Well-known member
  • Nov 29, 2013
    3,255
    1,216
    113
    Biyagama
    1.

    HTML:
    <!DOCTYPE html>
    <html>
    <body>
    
    <p>Click the button to extract characters from the string.</p>
    
    <button onclick="myFunction()">Check</button>
    
    <input type="text" id="sample" maxlength="7" required/>
    
    <p id="output"></p>
    
    <script>
    function myFunction() {
    
      var regno = document.getElementById("sample").value;
      var code = regno.substring(0, 2);
     
      if (code !== "CA")  {
        var output = "CA" + regno
      }  else   {
          var output = regno
      }   
     
      document.getElementById("output").innerHTML = output;
    }
    </script>
    
    </body>
    </html>
     

    omega18

    Well-known member
  • Jul 16, 2018
    580
    218
    63
    1.

    HTML:
    <!DOCTYPE html>
    <html>
    <body>
    
    <p>Click the button to extract characters from the string.</p>
    
    <button onclick="myFunction()">Check</button>
    
    <input type="text" id="sample" maxlength="7" required/>
    
    <p id="output"></p>
    
    <script>
    function myFunction() {
    
      var regno = document.getElementById("sample").value;
      var code = regno.substring(0, 2);
    
      if (code !== "CA")  {
        var output = "CA" + regno
      }  else   {
          var output = regno
      }  
    
      document.getElementById("output").innerHTML = output;
    }
    </script>
    
    </body>
    </html>
    machan meke CA nathuwa SA wage ekak dila thibboth a error eka check karala msg ekak pass karanna puluwanda?
     

    omega18

    Well-known member
  • Jul 16, 2018
    580
    218
    63
    Ow bn if x != CA && isNaN(x) = true kiyala dammanam hari..

    man hithanne @EMINƎM qwa wage oka ubta thaniyama goda dagana puluwan wei bn poddak w3schools wage ekaka baluwanam..
    Thanks machan. w3 ekenut balal ude tikak try kala. eth conditions kipayak check karala out ekak pass karanakota issue awa ekai damme.