- Published on
Sometimes you want to be notified if a file or directory gets updated/changed.
You can do this with fs.watch()
. It takes a filename and a callback. The callback has a couple of params you want to use - eventType
and fileName
. You can pass in a directory (so fileName
is more useful then).
const fs = require('fs');
// can be a filename or a directory...
const fileToWatch = './your-file-to-watch.txt'
fs.watch(fileToWatch, (eventType, fileName) => {
if (eventType === 'rename') {
console.log(`${fileName} was added/deleted`);
} else {
console.log(`${fileName} was updated`);
}
});