Created
June 9, 2017 15:06
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| <!DOCTYPE html> | |
| <html lang="en"> | |
| <head> | |
| <meta charset="UTF-8"> | |
| <meta name="viewport" content="width=device-width, initial-scale=1.0"> | |
| <meta http-equiv="X-UA-Compatible" content="ie=edge"> | |
| <title>Document</title> | |
| </head> | |
| <body> | |
| <form id="form"> | |
| <input type="text"> | |
| <input type="text"> | |
| <input data-action="multi" type="submit" value="Multiplicar"> | |
| <input data-action="div" type="submit" value="Dividir"> | |
| </form> | |
| <p id="result"></p> | |
| <script> | |
| (function () { | |
| var form = document.getElementById('form'); | |
| var val1 = form[0]; | |
| var val2 = form[1]; | |
| var result = document.getElementById('result'); | |
| form.addEventListener('submit', handleSubmit); | |
| form.addEventListener('click', handleClick); | |
| function handleSubmit(evt) { | |
| evt.preventDefault(); | |
| } | |
| function handleClick(evt) { | |
| var target = evt.target; | |
| var number1 = parseFloat(val1.value); | |
| var number2 = parseFloat(val2.value); | |
| switch (target.dataset.action) { | |
| case 'multi': return result.textContent = number1 * number2; | |
| case 'div': return result.textContent = number1 / number2; | |
| } | |
| } | |
| })(); | |
| </script> | |
| </body> | |
| </html> |
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