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konamicode.js
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konamicode.js
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// Konami code in reverse
var succesfulCodeSequence = [65, 66, 39, 37, 39, 37, 40, 40, 38, 38];
var pressedKeys = [];
document.onkeydown = function(keyboardEvent)
{
// Debugging to get key code
//console.log(keyboardEvent.keyCode);
// Adds an element to the 0 spot in the array and shifts the other elements
pressedKeys.unshift(keyboardEvent.keyCode);
// Keeps the array at length 10 by truncating the elements by
// the length of the successful code sequence
pressedKeys.length = succesfulCodeSequence.length;
if (isValidCode())
{
alert("CONGRATULATIONS, YOU'RE A NERD.");
}
};
function isValidCode()
{
for (var i = 0; i <= succesfulCodeSequence.length; i++)
{
if (succesfulCodeSequence[i] !== pressedKeys[i])
{
return false;
}
}
return true;
}