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Ext.get()与Ext.fly()之区别
- 博客分类：
- Extjs
从一开始接触Ext就看到有Ext.fly这个函数，当时觉得这个跟Ext.get没什么区别，加之当时对JS性能相关 问题认识肤浅，也一直没有在意其区别，今日看learning extjs一书，看到了有专门对Ext.fly特别强调的一处： This isn't exactly a speed tip, but is more about conserving memory by using something called a "flyweight" to perform simple tasks, which results in higher speed by not clo ...