2
我在查看一些代码并看到了这些评论,如何向全局帮助性能提升功能?由于性能原因将函数提升为全局函数?
// this function is promoted to be global
// to make firefoxs jit happy - URGH
function clamp(x, min, max) {
if(x < min) return min;
if(x > max) return max-1;
return x;
}
http://www.slideshare.net/nzakas/speed-up-your-javascript – Incognito 2010-10-15 19:44:55