Sgn function equvalien
negative numbers http://active.tutsplus.com/articles/explanatory/understanding-bitwise-operators/ http://www.i-programmer.info/programming/javascript/2550-javascript-bit-manipulation.html?start=1
by ivos
JavaScript
document.write(~5);
document.write('<br/>');
document.write(~-5);
document.write('<br/>');
document.write(~0);
document.write('<br/>');
document.write(5 && 0xFFFFFFFFFFFF);
document.write('<br/>');