如何在打字稿文件中使用json文件

Question

I have a file called men.json.

I want to do the equivalent of var men = require('./men.json'); .

Whatever I have tried it looks for ./men.json.js file.

I read that I can not use import since it is not a ts file.

What is the equivalent required line?

Answer 1

declare module '*.json' {
    var _: any;
    export default _;
}

then you can import mem from './mem.josn'

put this into some file that's included in tsconfig.json

now you can require .json , this works for any other file formats (though you need webpack since nodejs cannot require them directly)

Answer 2

You should try requiring as follows:

// foo.ts
var mem = require('./mem.json);
console.log(mem);

Then compile ...

tsc foo.ts

This will give a generic typescript error, like:

error TS2304: Cannot find name 'require

which you could ignore ... or preferably, get rid of by installing the necessary typings - or package if you are using typescript 2 or later. (see typescript getting error TS2304: cannot find name ' require' )