Closures und Rekursion

[tami]

hi,

auch schön Douglas Crockforst memoizer:

  
var memoizer = function (memo, formula) {  
   var recur = function (n) {  
       var result = memo[n];  
       if (typeof result !== 'number') {  
            result = formula(recur, n); memo[n] = result;  
       }  
        return result;  
    };  
    return recur;  
};  
  
var fibonacci = memoizer([0, 1], function (recur, n) {  
    return recur(n - 1) + recur(n - 2);  
});  

mfg

tami