Last active
August 29, 2015 14:21
-
-
Save timwco/907893db753b6defd8fa to your computer and use it in GitHub Desktop.
Calculator Exercise
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>Calculator</title> | |
| <style type="text/css"> | |
| .container { width: 300px; margin: 15px auto;} | |
| </style> | |
| </head> | |
| <body> | |
| <div class="container"> | |
| <img src="http://f.cl.ly/items/2Z1g1g1o0K3d360N3W0z/mathcat.png" alt="Math Cat" /> | |
| <h3>Let's Do Some Math!</h3> | |
| <input type="text" id="num_one" /> | |
| <br /><br /> | |
| <input type="text" id="num_two" /> | |
| <br /><br /> | |
| <input type="submit" value="Calculate" id="calculateBtn" /> | |
| <div class="answer"> | |
| <br /> | |
| Answer: <span id="answer"></span> | |
| </div> | |
| </div> | |
| <script src="main.js"></script> | |
| </body> | |
| </html> |
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
| // Grab the inputs | |
| var input1 = document.querySelector('#num_one'); | |
| var input2 = document.querySelector('#num_two'); | |
| // grab the calculate button | |
| var calcBtn = document.querySelector('#calculateBtn'); | |
| // grab the answer field | |
| var answerField = document.querySelector('#answer'); | |
| // Value Holder | |
| var value1, value2; | |
| // Calculate the value of the Input Fields | |
| function calculate () { | |
| value1 = input1.value; | |
| value2 = input2.value; | |
| answerField.innerHTML = Number(value1) + Number(value2); | |
| } | |
| // Add a "watcher" to our button | |
| calcBtn.addEventListener('click', calculate); | |
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment