4a2040f92c
This PR adds a validation mode whereby previous known-to-be-valid values can be used to speed up the validation process itself. At the same time it enables us to do fine-grained equality checking on records much more quickly than by using something like lodash isEqual, and using that we can prevent triggering effects for record updates that don't actually alter any values in the store. Here's some preliminary perf testing of average time spent in `store.put()` during some common interactions | task | before (ms) | after (ms) | | ---- | ---- | ---- | | drawing lines | 0.0403 | 0.0214 | | drawing boxes | 0.0408 | 0.0348 | | translating lines | 0.0352 | 0.0042 | | translating boxes | 0.0051 | 0.0032 | | rotating lines | 0.0312 | 0.0065 | | rotating boxes | 0.0053 | 0.0035 | | brush selecting boxes | 0.0200 | 0.0232 | | traversal with shapes | 0.0130 | 0.0108 | | traversal without shapes | 0.0201 | 0.0173 | **traversal** means moving the camera and pointer around the canvas #### Discussion At the scale of hundredths of a millisecond these .put operations are so fast that even if they became literally instantaneous the change would not be human perceptible. That said, there is an overall marked improvement here. Especially for dealing with draw shapes. These figures are also mostly in line with expectations, aside from a couple of things: - I don't understand why the `brush selecting boxes` task got slower after the change. - I don't understand why the `traversal` tasks are slower than the `translating boxes` task, both before and after. I would expect that .putting shape records would be much slower than .putting pointer/camera records (since the latter have fewer and simpler properties) ### Change Type - [x] `patch` — Bug fix ### Test Plan 1. Add a step-by-step description of how to test your PR here. 2. - [ ] Unit Tests - [ ] End to end tests ### Release Notes - Add a brief release note for your PR here. |
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README.md
tldraw
Welcome to the public monorepo for tldraw. tldraw is a library for creating infinite canvas experiences in React. It's the software behind the digital whiteboard tldraw.com.
- Read the docs and learn more at tldraw.dev.
- Learn about our license.
Local development
The local development server will run our examples app. The basic example will show any changes you've made to the codebase.
To run the local development server, first clone this repo.
Install dependencies:
yarn
Start the local development server:
yarn dev
Open the example project at localhost:5420.
License
tldraw's source code and distributed packages are provided under the non-commercial tldraw license.
This license does not permit commercial use. If you wish to use tldraw in a commercial product or enterprise, you will need to purchase a commercial license. To obtain a commercial license, please contact us at hello@tldraw.com.
To learn more, see our license page.
Trademarks
The tldraw name and logo are trademarks of tldraw. Please see our trademark guidelines for info on acceptable usage.
Community
Have questions, comments or feedback? Join our discord or start a discussion.
Contribution
Please see our contributing guide. Found a bug? Please submit an issue.
Contact
Find us on Twitter at @tldraw or email sales@tldraw.com. You can also join our discord for quick help and support.