A number of methods to repeat recordsdata in Node.js
In Node.js, there are a number of methods to repeat recordsdata., let’s check out the potential methods and evaluation every of them. That is my forty fourth Medium article.
1.copyFile
The copyFile() operate, which may copy a file on to the vacation spot listing, performs the only motion.
fs.copyFile('./knowledge.txt', './dest/information.txt');
The above methodology, asynchronously copies the file from src to dest. If dest is already exists then by default it’s overwritten. There aren’t any args handed to the callback operate over than any potential exception. Node.js doesn’t make sure that copy operations are atomic. Node.js will try to delete the goal file if an error occurs after opening the goal file for writing.
There’s a drawback after we use the above methodology. If the goal listing doesn’t exist then an exception can be thrown as a result of the goal listing should exist (the strategy won’t routinely create the goal listing). Subsequently, earlier than utilizing the above methodology, consumer should validate whether or not the goal listing definetly exists or not? If the goal listing doesn’t exists, consumer might use fs.mkdir()or fs.mkdirSync()to create the goal listing. copyFile() methodology can’t copy directories.
