一个用于每一天JavaScript示例-使用缓存计算（memoization）为了提高应用程序性能

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<title>每天一个JavaScript实例-使用缓存计算（memoization）来提高应用程序性能</title>
<script>
window.onload = function(){
		var fibonacci = function(){
				var memo = [0,1];
				var fib = function(n){
					var result = memo[n];
					if(typeof result != "number"){
							result = fib(n-1) + fib(n-2);
							memo[n] = result;
						}
						console.log("memo"+memo);
						return result;

					};

					return fib;

			}();

			var fib =function(n){
					return n<2?

n:fib(n-1)+fib(n-2);
				};

			console.time("non-memo");
			for(var i = 0; i<=10;i++){
					console.log(i+ " " + fib(i));
				}
			console.timeEnd("non-memo");
			console.time("memo");
			for(var i = 0; i<=10;i++){
				console.log(i+ " " + fibonacci(i) );
			}
			console.timeEnd("memo");
	}
</script>
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