<ul data-eligibleForWebStory="true"><li>ArkTS offers developers a powerful, TypeScript-like syntax with optimizations for better runtime performance.</li><li>Writing performant applications with ArkTS requires awareness of low-level optimizations.</li><li>Real-world performant programming practices include avoiding mixing integer and floating-point types.</li><li>Arithmetic overflow should be avoided as it can degrade performance.</li><li>Extract constants outside loops to reduce attribute lookup costs.</li><li>Optional parameters in hot paths should be avoided to prevent extra undefined checks.</li><li>Sparse arrays are slower to access; initialize arrays with contiguous elements for better performance.</li><li>Union arrays with mixed types should be avoided to maintain performance.</li><li>Adopting these tips can lead to faster, leaner, and more efficient applications when using ArkTS or HarmonyOS.</li><li>Developers can achieve significant performance improvements by making small, focused changes.</li><li>Happy coding!</li></ul>

Performant ArkTS Programming: Best Practices for High-Efficiency Code

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