Strange behavior of javascript events after pressing two keys at the same time -
i'm coding little javascript app , need control screen events (images appearance). example if image_1 appear on screem need press 1 key (for example right arrow) , if image_2 appear need press key (for instance left arrow). if both of them appear @ same time need press both keys.
the problem if press both keys @ same time, no more key events launched, mean when next image appear press key there not javascript event.
i make code simple try:
<html lang="es"> <head> <meta charset="utf-8"> <title>test1</title> <script> function adde () { if (document.addeventlistener) {// standard w3c document.addeventlistener("keydown",test1,false); } } // ejemplo equivalente para quitar el evento function removee () { if (document.removeeventlistener) {// standard w3c dom document.removeeventlistener("keydown",test1,false); } } function test1 (e) { alert('test'); if (!e) var e = window.event; switch (e.keycode) { case 39: alert(e.keycode); break; case 37: alert(e.keycode); break; default: alert(e.keycode); } } window.onload = function() { adde(); alert('listener added'); } </script> </head> <body> </body> </html> thanks in advance
as gonçalo vieira , andy e suggested me, problem no code debugging alert using. when changed better debuggin solution, console.log(), worked ok
Comments
Post a Comment