When starting a script, the JavaScript `promt` function will not run

Question

When starting a script, the JavaScript `promt` function will not run

I am facing a minor issue with my JavaScript code. I am in the initial stages of learning JavaScript and currently experimenting with else if statements along with the 'prompt' action. However, for some reason, this action is not getting executed, causing me to be unable to assign a value to the 'Chicken' variable.

Can anyone point out what mistake I might have made?

<html>
<head></head>
<body>
<script>
function checkState(){
 var chicken = prompt("Enter a value");
 var alive = 1;
 var dead = 2;

 if (chicken == alive) {
  document.write("Chicken is Alive");
 }
 else if(){
  document.write("Chicken is Dead");
 }
}

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

javascript

Answer 1

Answer №1

Added some insightful comments to the code snippet below, hope it sheds some light on the functionality!

<html>
  <head></head>
  <body>
    <script>
      function state(){
        var chicken = prompt("Please enter a value");
        var alive = 1;
        var dead = 2;

        // This comparison may lead to unexpected results if user input is not strictly numeric
        // For example, the string 'maybe' will equate to false when compared with 1
        // Please handle non-numeric inputs for accurate evaluation

        if (chicken == alive)
        {
          document.write("Chicken is Alive");
        }
        
        // There seems to be a missing condition here that could affect the outcome significantly
        else if (alive < 3)
        {
          document.write("Chicken is Dead");
        }
      }

      // Do not forget to invoke the function for it to work properly
      state()
    </script>
  </body>
</html>

Answer 2

Added some insightful comments to the code snippet below, hope it sheds some light on the functionality!

<html>
  <head></head>
  <body>
    <script>
      function state(){
        var chicken = prompt("Please enter a value");
        var alive = 1;
        var dead = 2;

        // This comparison may lead to unexpected results if user input is not strictly numeric
        // For example, the string 'maybe' will equate to false when compared with 1
        // Please handle non-numeric inputs for accurate evaluation

        if (chicken == alive)
        {
          document.write("Chicken is Alive");
        }
        
        // There seems to be a missing condition here that could affect the outcome significantly
        else if (alive < 3)
        {
          document.write("Chicken is Dead");
        }
      }

      // Do not forget to invoke the function for it to work properly
      state()
    </script>
  </body>
</html>

Answer 3

Answer №2

Failure to invoke the state function following its definition was noted. It is recommended, as mentioned by markymarks, to execute user javascript after the webpage has fully loaded.

<body onload="myFunction()">

Answer 4

Failure to invoke the state function following its definition was noted. It is recommended, as mentioned by markymarks, to execute user javascript after the webpage has fully loaded.

<body onload="myFunction()">

When starting a script, the JavaScript `promt` function will not run

Answer №1

Answer №2

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