Could be easily corrected by adding ‘var value’

function memoizeConstantMethod(o, p) {
var f = o[p], mf, value;
var s = function(v) {return o[p]=v||mf};
((mf = function() {
(s(function(){return value})).reset = mf.reset;
return value = f.call(this);
}).reset = s)();
}