To get the extension of a file from a path, you can use the extname() method from the global path module in Node.js.
For example, let's say you have a path like myFolder/myFile.txt from which you need to get the extension of the file. For that, you can pass the path string as an argument to the method like this,
// require path
const path = require("path");
// path string
const pathStr = "myFolder/myFile.txt";
// get the extension of the file from the path
// using the path.extname() method
const extension = path.extname(pathStr); // ".txt"
- The
extname()method returns the extension of the file from the path. - If no extension is identified from the path the method returns an empty string
''.
See the above code live in repl.it
That's all! 😃