performance

flutter performance savelayer

Flutter - Performance best practices

Minimize expensive operations 몇몇 연산자들은 다른 연산자들보다 더 많은 리소스를 소모합니다. 앱의 UI를 어떻게 디자인하고 구현하는지가 얼마나 효율적으로 앱이 작동하는지 큰 영향을 줍니다. Control build() cost UI를 디자인 할 때 항상 생각해야할 것이 있습니다. 상위 위젯을 rebuild 할 때 해당 위젯의 build()가 자주 호출될 수 있으므로, build() 메소드에서 반복적이고 비용이 많이 드는 작업을 피하세요. 큰 build() 함수가 있는 지나치게 큰 단일 위젯을 만드는 것을 피하세요. 캡슐화뿐만 아니라 위젯들이 어떻게 변하는지에 따라 위젯을 다른 위젯들로 분할하세요. State 객체에서 setState()가 호출되면, 모든 하위 위젯들이 rebuil..

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flutter dart performance

Dart: Is it efficient to write nested functions in methods that are called several times

please consider the below code, class A { foo() { int a = logicToGetA(); int _bar() => someOtherLogic(a); // .. int b = _bar(); // .. } } class B { int _bar(int a)...

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unity 2d mobile game performance

Performance tips for Unity 2d mobile

divillysausages.com is the site of Damian Connolly, an Irish (game) developer currently living in Bordeaux, France. Languages include AS3, C#, JavaScript, TypeScript, ObjC, C++, Groovy, Dart, Flutter and any other buzzword that currently floats his boat

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javascript selector performance

JavaScript Selector Performance | Go Make Things

One of the students in my Vanilla JS Slack channel asked me about the performance difference between querySelector() and things like getElementById() and getElementsByClassName(). Specifically, getElementById() and getElementsByClassName() are more than twice as fast as querySelector() and querySelectorAll(). So, that’s bad, right? I honestly don’t think it matters. getElementById() can run about 15 million operations a second, compared to just 7 million per second for querySelector() in the latest version of Chrome.

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