Performance is a key ingredient to success of any application. This is a common factor for end-user to judge your application. Here I am listing some of the point that help us to improve the performance of ActionScript3 based application.
- Always stay strongly typed
- Avoid to using constants
- For creating of instance of Array and Object instead of using constructor use [] and {}
- _visible is better than _alpha
- Must remove onEnterFrame and setInterval after use
- Use int and bitwise operations
- Carefully watch your Listeners
- Avoid accessing variables of other classes directly
- Use bitwise operator for multiplication and division
- Keep in mind that division is slower than multiplication
Reference – http://help.adobe.com/en_US/as3/mobile/flashplatform_optimizing_content.pdf
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