OPTIMIZING JAVASCRIPT FOR FUN AND FOR PROFIT

Summary from the TLDR Web Dev newsletter

Optimizing JavaScript code for performance often involves trade-offs with readability. Careful benchmarking is necessary to identify bottlenecks and measure improvements. Common optimization techniques include avoiding string comparisons and different object shapes, minimizing the use of array and object methods, reducing indirection, and optimizing memory access patterns. Using eval() strategically and understanding the nuances of string manipulation can lead to better performance.