1 npm install react react-dom typescript @types/react @types/react-dom --save bash Once the packages are installed, you'll need to configure a new TypeScript tsconfig.json file with specific support for JSX and React: So, on the root of your folder create the following files/folders. If it's non-parsed JSON that's basically just a big string I first just go into the development tools console of chrome and do a JSON.parse(); of the string. And then copy and paste the output into an object. Applications packaged with webpack 2.0.0+ (such as those created with create-react-app) support imports from json exactly as in the question (see this answer.. Be aware that import caches the result, even if that result is parsed json, so if you modify that object, other modules that also import it have references to the same object, not a newly parsed copy.

The readFile and readFileSync functions will read JSON data from the file in an asynchronous and synchronous manner, respectively. The tsconfig.json file controls TypeScript-related options so that your IDE, the tsc command, and this loader all share the same options.. devtool / sourcemaps. Get 3 months access to 400+ books and courses for $3/m!

Learn how to migrate a React app to TypeScript from JavaScript, and take advantage of type safety for more reliable code. If you want to be able to debug your original source then you can thanks to the magic of sourcemaps. Angular 6.1+ supports TypeScript 2.9 which allows you to use the import statement to import local JSON files just like any TypeScript module. A lot of times when I'm just trying to test something with fake data I'll just put the JSON into a javascript object and import it into my file. But if you need to use older versions: You can access JSON files in more TypeScript way. First, make sure your new typings.d.ts location is the same as with the include property in your tsconfig.json file. You can also use the global require method to handle reading/parsing JSON data from a file in a single line of code. However, require is synchronous and can only read JSON data from files with '.json' extension. It's easy to use typescript version 2.9+. Now we are going to create a few files and folders that are required to set up the project. Test your JavaScript, CSS, HTML or CoffeeScript online with JSFiddle code editor.

If it's non-parsed JSON that's basically just a big string I first just go into the development tools console of chrome and do a JSON.parse(); of the string. A lot of times when I'm just trying to test something with fake data I'll just put the JSON into a javascript object and import it into my file. So you can easily import JSON files as @kentor decribed.

To import JSON into your TypeScript code, you need to add the following code to a typings file (a file with a name like *.d.ts, say, json.d.ts—but it does not necessarily need to say json) 1. Get Access Now To enable this feature, you need to add and set the resolveJsonModule option to true in the tsconfig.json file under the compilerOptions key file.