TypeScript Performance with Aleksandra Sikora

Become a TypeScript Wizard with my free beginners TypeScript Course:

Follow Matt on Twitter

Join the Discord:

[JakobBjerrePetersen]

Fascinating stuff. Thanks a lot for the interview and time both of you took. Just the "Incremental equals true" shaved 30% off my catastrophic workplace angular build. :D Really good stuff.

[hamzadlm]

seriously, you should get a wizzard outfit

[mattd]

This was very interesting. I would love to see more typescript performance videos

[maxtsh]

Awesome, digging deep into typescript and how it works behind the scenes is very cool.

[tobiawosola]

Insightful analysis of ts performance well done guys, I really learnt a lot.

[vitalysuper]

Wait isnt node modules is added to exclude by default?! Typescript docs say that

[ApprendreSansNecessite]

56:32 Be careful because unless one is really several times or an order of magnitude faster than the other, you can't simply compare these solutions : generate-trace will not give you the same flame chart every time you run it on the same code (even the size of the trace and types json files vary each time); the wall durations will vary greatly depending on the time of day and the age of the captain, and the effect is not proportional; finally, the tool also adds some overhead and you can't be certain that the overhead is spread homogeneously, so be careful with your conclusions, try running multiple traces and when you are done try comparing different builds without generate-trace to see if the difference actually impacts your codebase. You would not want to obfuscate your code for a performance gain that is not even so great in the end.

[juanmacias]

38:55 when your own code calls you out. xD lmfao