Disable Arrow Keys Using Javascript
While implementing browser based games, Arrow keys are used for game controlling, instead of scrolling of page, so it's necessary to disable there default functionality.
Code
var keys = {};
window.addEventListener("keydown",
function(e){
keys[e.keyCode] = true;
switch(e.keyCode){
case 37: case 39: case 38: case 40: // Arrow keys
case 32: e.preventDefault(); break; // Space
default: break; // do not block other keys
}
},
false);
window.addEventListener('keyup',
function(e){
keys[e.keyCode] = false;
},
false);
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