Creating a simple calculator

This is for a blog post: JavaScript Calculators & Code Creators

by David Roman-Halliday

HTML

<!doctype html>
<html lang="en">

  <head>
    <meta http-equiv="Content-Type" content="text/html; charset=utf-8">
    <title>Calculator Example</title>
    <!-- Note: for inline javascript, the code will go here -->
    <!-- Note: for jsfiddle.net, the code will go in the JavaScript frame -->
  </head>

  <body>
    <h1>Calculator Example</h1>

    <p>
      <label for="input_a">Input A: </label>
      <input name="input_a" type="number" value="100">
      <br/>
      <label for="input_b">Input B: </label>
      <input name="input_b" type="number" value="5">
    </p>

    <p>
      <input id="runButton" type="button" name="run" value="Run Calculations">
    </p>

    <p id="output">
      Output will be here
    </p>
    
  </body>

</html>