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

To use the cp function from fs-extra in JavaScript, first you need to install fs-extra package using npm. You can do this by running the following command:

index.tsx
npm install fs-extra
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Then, you can use the following code to copy a file using cp function:

index.tsx
const fs = require('fs-extra');

fs.copy('source.txt', 'destination.txt', function (err) {
  if (err) {
    console.error(err);
  } else {
    console.log('File was copied successfully');
  }
});
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In the above code, the copy function takes two parameters: the source file path and the destination file path. The function also takes a callback function as an optional third parameter, which is called when the operation is complete. If there is an error, the error is passed to the callback function, otherwise no error is passed.

Alternatively, you can also use the await keyword if you are using async/await syntax:

index.tsx
const fs = require('fs-extra');

async function copyFile() {
  try {
    await fs.copy('source.txt', 'destination.txt');
    console.log('File was copied successfully');
  } catch (err) {
    console.error(err);
  }
}

copyFile();
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In the above code, the copy function is wrapped in an async function and the await keyword is used to wait for the operation to complete before moving on to the next line of code. Any errors are caught in the catch block.