how to use the readlink function from fs-extra in javascript

To use the readlink function from fs-extra, you can follow these steps:

1. First, we need to install and require the fs-extra module:

index.tsx
const fs = require('fs-extra');
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2. Then, we can use the readlink function to get the target of a symbolic link. Here's an example:

index.tsx
const filePath = '/path/to/symlink';
fs.readlink(filePath, (err, linkString) => {
  if (err) {
    console.error(err);
    return;
  }
  console.log(`The target of ${filePath} is ${linkString}`);
});
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In this example, we specify the path to the symlink we want to get the target of using the filePath variable. We then pass filePath to the readlink function, which takes a callback that will be called with either an error (if there was one) or the target of the symlink as a string.

3. You can also use the readlinkSync function if you want to read the target of a symlink synchronously. Here's an example:

index.tsx
const filePath = '/path/to/symlink';
try {
  const linkString = fs.readlinkSync(filePath);
  console.log(`The target of ${filePath} is ${linkString}`);
} catch (err) {
  console.error(err);
}
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In this example, we use the try/catch statement to catch any errors that might occur while reading the target of the symlink. If there are no errors, we log the target to the console.