Remove filename.extension in url using nodejs - node.js

Question

I'm a beginner in nodejs, so please excuse if this question already answered. I tried multiple methods but didn't work for me.
I'm trying to remove the filename.extension in http url
For example:
http://somedomain.com/path1/path2/path3/myfile.txt
to
http://somedomain.com/path1/path2/path3/
The filename in the url is dynamic, so I cannot use "myfile.txt" explicitly in the code.
I'm not using any web frameworks, But I have http://stringjs.com library

Answer 1

Using a Regular Expression:
'http://somedomain.com/hello1/hello2/hello3/myfile.txt'.replace(/\/\w+\.\w+$/, '');
The regular expression matches two strings separated by a . and preceeded by a / (/myfile.txt in your case), which is then being replaced by an empty string. This method works in node as well as in pure javascript.
Using node.js' path module:
let path = require('path');
let parsed = path.parse('http://somedomain.com/hello1/hello2/hello3/myfile.txt');
console.log(parsed.dir) // => http://somedomain.com/hello1/hello2/hello3
node.js has a built-in module for parsing paths. It is however not made for parsing URIs, but should work just fine in your case.
Splitting, Slicing and Joining
let url = 'http://somedomain.com/hello1/hello2/hello3/myfile.txt';
url.split('/').slice(0, -1).join('/');
Split the url at every /, remove the last element from the resulting array (myfile.txt) and join them back together with / as the separator.

Answer 2

You can do it like this:
var path = 'http://somedomain.com/hello1/hello2/hello3/myfile.txt';
path = path.split('/');
path.splice(path.length-1,1);
path = path.join('/');