Type definition for View Transitions API
$ npm i -D view-transitions-api-types
Add a TypesScript triple-slash directive as follows in any code-containing '.ts' file you want these types to be available in:
// Add types for document.startViewTransition for use in this file. See https://www.typescriptlang.org/docs/handbook/triple-slash-directives.html#-reference-types- for more info. /// <reference types="view-transitions-api-types" /> console.log(document.startViewTransition) // no type error!
Create a .d.ts file anywhere in your project so that it is visible to TypeScript according to your tsconfig.json settings. For
example, it could be at src/global.d.ts or src/view-transitions-api-types.d.ts.
Add a TypesScript triple-slash directive as follows:
// Add types for document.startViewTransition ambiently for implicit use in the entire project. See https://www.typescriptlang.org/docs/handbook/triple-slash-directives.html#-reference-types- for more info. /// <reference types="view-transitions-api-types" />
This exposes the types ambiently so they are available without any import or require statements. TypeScript will simply know about them everywhere.
Important: do not add any import or export statements to this file, or it will stop working ambiently. Doing that
changes it in TypeScript's view from a "script" to a "module", and the rules about ambient types change in that case.
This project is licensed under the MIT License.