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

To use the read function from the fs-extra library in TypeScript, follow the steps below:

1. Install the fs-extra library by running the following command in your terminal:

   index.ts
   npm install fs-extra
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2. Import the fs-extra module and the promises module from Node.js:

   index.ts
   import * as fs from 'fs-extra';
   import { promises as fsPromises } from 'fs';
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3. Import any other necessary modules and define your function:

   index.ts
   async function readFile(filePath: string): Promise<string> {
     try {
       const contents = await fs.readFile(filePath, 'utf8');
       return contents;
     } catch (err) {
       console.error(err);
       throw err;
     }
   }
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4. Call the readFile function with the path to the file you want to read:

   index.ts
   const filePath = '/path/to/file.txt';
   const contents = await readFile(filePath);
   console.log(contents);
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The read function from fs-extra returns a Promise that resolves to the content of the file as a string by default. You can pass options to the function to change this behavior. In this example, we are specifying the utf8 encoding to return a string. If you want to return the buffer instead, you can omit the encoding option.

Note that we are using async/await syntax to handle the Promise returned by fs.readFile. This makes the code more readable and easier to reason about than using callbacks.