how to use the filereadstream function from the fs-extra library in typescript

To use the filereadstream function from the fs-extra library in TypeScript, you can do the following:

1. Install the fs-extra package using npm:

index.ts
npm install fs-extra --save
28 chars
2 lines

2. Import the createReadStream function from the fs-extra package in your TypeScript file:

index.ts
import { createReadStream } from "fs-extra";
45 chars
2 lines

3. Use the createReadStream function to read a file as a stream:

index.ts
const readStream = createReadStream("path/to/file.txt");
57 chars
2 lines

4. You can then use the readStream object to listen for events such as data, end, and error:

index.ts
readStream.on("data", (chunk) => {
  console.log(`Received ${chunk.length} bytes of data.`);
});

readStream.on("end", () => {
  console.log("Finished reading the file.");
});

readStream.on("error", (err) => {
  console.error(`Encountered an error: ${err}`);
});
264 chars
12 lines

Note that the createReadStream function returns a Node.js Readable stream that can be used to read the contents of a file chunk by chunk.