Here is an example of using TwoSlash with Shiki:
var console: Console
console.Console.log(message?: any, ...optionalParams: any[]): void (+1 overload)
Prints to `stdout` with newline.log((1 + 2 + 3 + 4).to- toExponential
- toFixed
- toLocaleString
- toPrecision
- toString
Number.toFixed(fractionDigits?: number): string
Returns a string representing a number in fixed-point notation.@paramfractionDigits Number of digits after the decimal point. Must be in the range 0 - 20, inclusive.Fixed(2))
interface Todo {
Todo.title: string
title: string
}
const const todo: Readonly<Todo>
todo: type Readonly<T> = { readonly [P in keyof T]: T[P]; }
Make all properties in T readonlyReadonly<Todo> = {
title: string
title: 'Delete inactive users',
}
const todo: Readonly<Todo>
todo.title = 'Hello'Cannot assign to 'title' because it is a read-only property.
Try hovering on each token to see the type information. Shiki runs oniguruma
to give syntax highlighting, and TwoSlash runs typescript
to give type information. Both are quite heavy libraries, but this is done ahead of time on building, it means that what you see here is completely static pure HTML and CSS!
The Shiki integration allows you to provide custom renderer of how the HTML been generated based on AST. This allows us to have dual themes support, and also the syntax highlighting for the type information.
Check @shikijs/twoslash
and commit for the integration on antfu.me, for more information :)
The input code
```ts twoslash
// @errors: 2540
console.log((1 + 2 + 3 + 4).toFixed(2))
// ^|
interface Todo {
title: string
}
const todo: Readonly<Todo> = {
title: 'Delete inactive users',
// ^?
}
todo.title = 'Hello'
```