Prompt Title: Downloading files

You're correct; TypeScript doesn't automatically infer the types for event handlers like 'error' in this context. To resolve the issue, you can explicitly define the type for the 'error' event handler. Here's the modified TypeScript code:

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import fetch from 'node-fetch';
import fs from 'fs';

// Function to download a file from a URL and save it to a local path
async function downloadFile(url: string, outputPath: string): Promise<void> {
  try {
    const response = await fetch(url);

    if (!response.ok) {
      throw new Error(`HTTP status ${response.status}: ${response.statusText}`);
    }

    const fileStream = fs.createWriteStream(outputPath);

    response.body.pipe(fileStream);

    await new Promise<void>((resolve, reject) => {
      fileStream.on('finish', () => resolve());
      fileStream.on('error', (error) => reject(error)); // Explicitly define the type for 'error'
    });

    console.log(`File downloaded as: ${outputPath}`);
  } catch (error) {
    console.error(`Download error: ${(error as Error).message}`);
  }
}

// Example usage:
const fileUrl = 'https://example.com/your-file-url'; // Replace with your file URL
const outputPath = 'downloaded-file.pdf'; // Specify the local file path

downloadFile(fileUrl, outputPath);

In this code, I've explicitly defined the type for the 'error' event handler by providing the (error) parameter and specifying the type as (error: Error). This informs TypeScript that the event handler will receive an error of type Error.