What is the difference between benchmarking and profiling in JavaScript?

What is the difference between benchmarking and profiling in JavaScript?

Benchmarking is measuring the performance of code by running it multiple times to see how long it takes, while profiling involves analyzing the code to understand where time is being spent and identifying bottlenecks.

Can you give me examples of tools for benchmarking and profiling?

Sure! For benchmarking, you can use tools like Benchmark.js. For profiling, Chrome DevTools and Node.js built-in profiler are great options.

When should I use benchmarking over profiling?

Use benchmarking when you want to compare the performance of different code snippets or algorithms. Use profiling when you need to analyze the performance of your application to find specific issues.

Are there any best practices for benchmarking?

Yes, some best practices include running benchmarks in a controlled environment, avoiding optimizations during tests, and running multiple iterations to get accurate results.