A couple of rules to improve the performance of your JS code.
- A consice list of rules to aviod writing slow code.
- Concrete use cases for each rule.
- Benchmarking of slow code vs fast alternative.
- This is not a guide on algorithms or data structures (although they are very important).
- This is not a guide to write the most performant code (but to avoid writing very slow code).
- This is not for competitive programmers, if you know how to calculate the time complexity of your code, and what
mallocis, then you probably don't need this guide.
- Avoid nested loops when possible.
- Use a Set. ex: Filter invited guests
- Use an index. ex: Group clients with their orders
- Avoid creating new objects when possible.
- Mutate the object. ex: Separate odd and even numbers
Yes, those are all the simple rules I could come up with so far. I will add more rules soon :)
Feel free to open an issue/PR to add new rules or examples. I will be reviewing them and trying to keep the guide concise and each example focused on a single rule.