Skip to content

docs: remove typescript FAQ #9108

New issue

Have a question about this project? Sign up for a free GitHub account to open an issue and contact its maintainers and the community.

Sign up for GitHub

By clicking “Sign up for GitHub”, you agree to our terms of service and privacy statement. We’ll occasionally send you account related emails.

Already on GitHub? Sign in to your account

Merged
merged 1 commit into from
Sep 16, 2023
Merged

docs: remove typescript FAQ #9108

Changes from all commits
Commits
Show all changes
1 commit
Select commit
File filter

Filter by extension

Filter by extension
Conversations
Failed to load comments.
Loading
Jump to
Jump to file
Failed to load files.
Loading
Diff view
Diff view
31 changes: 1 addition & 30 deletions documentation/docs/05-misc/01-faq.md
View file
Open in desktop
Original file line number Diff line number Diff line change
Expand Up @@ -59,42 +59,13 @@ It will show up on hover.

Note: The `@component` is necessary in the HTML comment which describes your component.

## What about TypeScript support?
Copy link
Collaborator

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

We should still leave a link to the new TypeScript page here.

Copy link
Member Author

Choose a reason for hiding this comment

The reason will be displayed to describe this comment to others. Learn more.

Should we? We don't have a corresponding FAQ for any of the other documentation pages


You need to install a preprocessor such as [svelte-preprocess](https://github.com/sveltejs/svelte-preprocess). You can run type checking from the command line with [svelte-check](https://www.npmjs.com/package/svelte-check).

To declare the type of a reactive variable in a Svelte template, you should use the following syntax:

```ts
const count: number = 100;

// ---cut---
let x: number;
$: x = count + 1;
```

To import a type or interface make sure to use [TypeScript's `type` modifier](https://www.typescriptlang.org/docs/handbook/release-notes/typescript-3-8.html#type-only-imports-and-export):

```ts
// @filename: SomeFile.ts
export interface SomeInterface {
foo: string;
}

// @filename: index.ts
// ---cut---
import type { SomeInterface } from './SomeFile';
```

You must use the `type` modifier because `svelte-preprocess` doesn't know whether an import is a type or a value — it only transpiles one file at a time without knowledge of the other files and therefore can't safely erase imports which only contain types without this modifier present.

## Does Svelte scale?

There will be a blog post about this eventually, but in the meantime, check out [this issue](https://github.com/sveltejs/svelte/issues/2546).

## Is there a UI component library?

There are several UI component libraries as well as standalone components. Find them under the [components section](https://sveltesociety.dev/components#design-systems) of the Svelte Society website.
There are several UI component libraries as well as standalone components. Find them under the [design systems section of the components page](https://sveltesociety.dev/components#design-systems) on the Svelte Society website.

## How do I test Svelte apps?

Expand Down