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JavaScript Practice Questions And Answer

Problem: Write a program to find square and cube of any number using function.
Solution:

<html>
 <head>
  <script>
   function cube(data)
    {
      document.write("<br>CUBE=" + data*data*data)
    }
     function square(data)
    {
      document.write("<br>SQUARE = " + data*data)
    }
      function demo1(option)
    {
      var inputBox = document.getElementById("input1")
      var n = parseInt(inputBox.value)
      if(option==1)
      {
       square(n)
      }
       if(option==2)
       {
        cube(n)
       }
    }
  </script>
 </head>
  <body>
    <input type="text" placeholder="number" id="input1" />
    <br><br>
    <input type="button" value="Square" onclick="demo1(1)" /><br>
    <input type="button" value="Cube" onclick="demo1(2)" /><br>
  </body>
</html>

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