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I am building a react library in typescript and i want to provide consumers of this library a typescript definition file.
How do i make sure the typescript definition file is always correct an matching the js code?
Or if my components are written in typescript is there a way to generate a single d.ts file from all the generated d.ts files the compiler generated for me?
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With TypeScript 3.7, TypeScript added support for generating . d. ts files from JavaScript using JSDoc syntax. This set up means you can own the editor experience of TypeScript-powered editors without porting your project to TypeScript, or having to maintain .
Using TypeScript, here's how we define the component: // Input. tsx import React from "react"; type Props = { onChange: (str: string) => void; placeholder: string; name: string; value?: string; }; function Input({ onChange, name, placeholder, value = "" }: Props) { return ( <input onChange={event => onChange(event.
If you are the author of the library, it's extremely easy to provide and maintain the definitions. It works the same way regardless of the library you're using (such as React).
.d.ts fileYou can create a .d.ts file by passing -d to compiler arguments or adding declaration: true in your tsconfig.json.
package.json
Add field named typings to your project.json, e.g. "typings": "./index.d.ts" (./index.d.ts is actually the default value if typings is omitted).
TypeScript compiler will automatically use provided typings if the user installs your library via NPM.
More info:
Writing Declaration Files
Typings for NPM packages
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