Svelte is a new way to build web applications. It's a compiler that takes your declarative components and converts them into efficient JavaScript that surgically updates the DOM.
The [Open Source Guides](https://opensource.guide/) website has a collection of resources for individuals, communities, and companies. These resources help people who want to learn how to run and contribute to open source projects. Contributors and people new to open source alike will find the following guides especially useful:
- Simply start using Svelte. Go through the [Getting Started](https://svelte.dev/docs#getting-started) guide. Does everything work as expected? If not, we're always looking for improvements. Let us know by [opening an issue](#reporting-new-issues).
- Look through the [open issues](https://github.com/sveltejs/svelte/issues). A good starting point would be issues tagged [good first issue](https://github.com/sveltejs/svelte/issues?q=is%3Aissue+is%3Aopen+label%3A%22good+first+issue%22). Provide workarounds, ask for clarification, or suggest labels. Help [triage issues](#triaging-issues-and-pull-requests).
- Read through our [tutorials](https://svelte.dev/tutorial/basics). If you find anything that is confusing or can be improved, you can make edits by clicking "Edit this chapter" at the bottom left of the tutorial page.
- Take a look at the [features requested](https://github.com/sveltejs/svelte/labels/feature%20request) by others in the community and consider opening a pull request if you see something you want to work on.
Contributions are very welcome. If you think you need help planning your contribution, please ping us on Discord at [svelte.dev/chat](https://svelte.dev/chat) and let us know you are looking for a bit of help.
If you'd like to propose an implementation for a large new feature or change then please [create an RFC](https://github.com/sveltejs/rfcs) to discuss it up front.
When deciding where to contribute, you may wish to take a look at [our roadmap](https://svelte.dev/roadmap). The Svelte team generally works on a single major effort at a time. This has a couple benefits for us as maintainers. First, it allows us to focus and make noticeable progress in an area being proactive rather than reactive. Secondly, it allows us to handle related issues and PRs together. By batching issues and PRs together we’re able to ensure implementations and fixes holistically address the set of problems and use cases encountered by our users.
The maintainers meet on the final Saturday of each month. While these meetings are not open publicly, we will report back by leaving a comment on each issue discussed. We will generally discuss items aligning with our roadmap, but major PRs needing discussion amongst the maintainers can be added to the agenda for the monthly maintainer’s meeting. However, we typically are only able to get to a couple of items that are not aligned with our current priority.
We do our best to review PRs and RFCs as they are sent, but it is difficult to keep up. We welcome help in reviewing PRs, RFC, and issues. If an item aligns with the current priority on our [roadmap](https://svelte.dev/roadmap), it is more likely to be reviewed quickly. PRs to the most important and active ones repositories get reviewed more quickly while PRs to smaller inactive repos may sit for a bit before we periodically come by and review the pending PRs in a batch.
We use [GitHub issues](https://github.com/sveltejs/svelte/issues) for our public bugs. If you would like to report a problem, take a look around and see if someone already opened an issue about it. If you are certain this is a new unreported bug, you can submit a [bug report](#reporting-new-issues).
If you have questions about using Svelte, contact us on Discord at [svelte.dev/chat](https://svelte.dev/chat), and we will do our best to answer your questions.
If you see anything you'd like to be implemented, create a [feature request issue](https://github.com/sveltejs/svelte/issues/new?template=feature_request.md)
When [opening a new issue](https://github.com/sveltejs/svelte/issues/new/choose), always make sure to fill out the issue template. **This step is very important!** Not doing so may result in your issue not being managed in a timely fashion. Don't take this personally if this happens, and feel free to open a new issue once you've gathered all the information required by the template.
- **One issue, one bug:** Please report a single bug per issue.
- **Provide reproduction steps:** List all the steps necessary to reproduce the issue. The person reading your bug report should be able to follow these steps to reproduce your issue with minimal effort. If possible, use the [REPL](https://svelte.dev/repl) to create your reproduction.
If you would like to request a new feature or enhancement but are not yet thinking about opening a pull request, you can also file an issue with [feature template](https://github.com/sveltejs/svelte/issues/new?template=feature_request.yml).
If you're only fixing a bug, it's fine to submit a pull request right away, but we still recommend that you file an issue detailing what you're fixing. This is helpful in case we don't accept that specific fix but want to keep track of the issue.
Fork [the repository](https://github.com/sveltejs/svelte) and create your branch from `master`. If you've never sent a GitHub pull request before, you can learn how from [this free video series](https://egghead.io/courses/how-to-contribute-to-an-open-source-project-on-github).
1. To run test for a specific feature, you can use the `-g` (aka `--grep`) option. For example, to only run test involving transitions, run `npm run test -- -g transition`.
1. To run only one test, rename the test sample folder to end with `.solo`. For example, to run the `test/js/samples/action` only, rename it to `test/js/samples/action.solo`.
1. To run only one test suite, rename the test suite folder to end with `.solo`. For example, to run the `test/js` test suite only, rename it to `test/js.solo`.
1. Remember to rename the test folder back. The CI will fail if there's a solo test.
1. Tests suites like `css`, `js`, `server-side-rendering` asserts that the generated output has to match the content in the `.expected` file. For example, in the `js` test suites, the generated js code is compared against the content in `expected.js`.
1. To update the content of the `.expected` file, run the test with `--update` flag. (`npm run test --update`)
[Eslint](https://eslint.org) will catch most styling issues that may exist in your code. You can check the status of your code styling by simply running `npm run lint`.
#### Code conventions
-`snake_case` for internal variable names and methods.
-`camelCase` for public variable names and methods.
### Sending your pull request
Please make sure the following is done when submitting a pull request:
1. Describe your **test plan** in your pull request description. Make sure to test your changes.
1. Make sure your code lints (`npm run lint`).
1. Make sure your tests pass (`npm run test`).
All pull requests should be opened against the `master` branch. Make sure the PR does only one thing, otherwise please split it.
By contributing to Svelte, you agree that your contributions will be licensed under its [MIT license](https://github.com/sveltejs/svelte/blob/master/LICENSE).
Feel free to ask in [#contributing](https://discord.com/channels/457912077277855764/750401468569354431) on [Discord](https://svelte.dev/chat) if you have questions about our process, how to proceed, etc.
