Build Lazy Applications

Fine-tuning function implementations can help application performance immensely. If your application works with large lists, you want to traverse lists efficiently and avoid heavy computations, when possible. However, implementation tweaks only go so far. You may still encounter performance issues in your view layer.

In this section, you will see those issues surface in Rescue Me’s application. The application must display thousands of rescue animals at a time, which causes slowdown in a couple areas. Rescue Me admits that they should rethink their UI, but for now they need quick help to meet their initial release date next week. You will measure application performance with browser profiling tools. Then, you will use ...

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