| <!DOCTYPE html> |
| <div><input id="target" type="checkbox">Pressing "a" while this checkbox is |
| focused will remove it from the DOM.</div> |
| <div><textarea id="log" style="width:250px; height:250px;"></textarea></div> |
| <div><button id="clear">Clear log</button></div> |
| <script> |
| function removeNode(node) { |
| if (node && node.parentNode) { |
| node.parentNode.removeChild(node); |
| } |
| } |
| |
| function log(msg) { |
| document.getElementById('log').value += msg + '\n'; |
| } |
| |
| document.body.onkeyup = function() { |
| log('keyup (body)'); |
| }; |
| |
| document.getElementById('clear').onclick = function() { |
| document.getElementById('log').value = ''; |
| }; |
| |
| var target = document.getElementById('target'); |
| target.onkeydown = function() { log('keydown (target)'); }; |
| target.onkeypress = function(e) { |
| e = e || window.event; |
| var k = e.keyCode || e.which; |
| if (k == 97) { |
| log('a pressed; removing'); |
| removeNode(target.parentNode); |
| } |
| }; |
| target.onkeyup = function() { log('keyup (target)'); }; |
| </script> |
