lost+found/src/bin.js
function _gpfPow2 (n) {
    var result = _gpfPow2[n];
    if (result) {
        return result;
    }
    result = _gpfComputePow2(n);
    _gpfPow2[n] = result;
    return result;
}
function _gpfPow2 (n) {
    var result = _gpfPow2[n];
    if (result) {
        return result;
    }
    result = _gpfComputePow2(n);
    _gpfPow2[n] = result;
    return result;
}
function _gpfPow2 ( n ) { var result = _gpfPow2 [ n ] ; if ( result ) { return result ; } result = _gpfComputePow2 ( n ) ; _gpfPow2 [ n ] = result ; return result ; }
Gives the power of 2

@param {Number} n the power to get
@return {Number}
Gives the power of 2