使用Typescript在nodejs中读取文件

Question

I start to learn typescript today, and there's a problem.

Here is the filetree(after compiling):

dist
index.js
src
data.txt
index.ts

Here is ./src/index.ts:

import { readFileSync } from 'fs';

let data = readFileSync('./data.txt');
console.log(data);

After compiling with command "tsc", it creates ./dist/index.js, absolutely the file data.txt cannot be read correctly. How to make it the right path?

Answer 1

Usually you are not supposed to put data in src folder. There are several ways if you really want to do so:

1. copy data.txt to dist while compiling typescript
2. use absolute path which could be path.join(__dirname, "../src/data.txt")
3. Since you already know index.ts is going to be compiled to dist, use "../src/data.txt" directly