NodeJS - Split the string of two joined paths, to obtain a certain portion of the string-CodePudding

Say we have a folder path like so...

/just/some/folder/location/

And a filepath like so...

this/way/for/the/file.txt

And we merge/join the two paths together to make a fullpath like so...

var folderPath = "/just/some/folder/location"
var filePath = "this/way/for/the/file.txt"

var joinedPath = path.join(folderPath, filePath);

How would I be able to cut the folderPath from the string, and keep only part of the filePath part so I'm left with an output like the example below?

way/for/the/file

CodePudding user response：

As you already have the individual variables, do don't have to first join and then remove the value of folderPath.

Using filePath you could capture from the first occurrence of / to before the last occurrence of a . using a pattern

const regex = /\/(\S )\./;
const str = `this/way/for/the/file.txt`;
const m = str.match(regex);

if (m) console.log(m[1]);

CodePudding user response：

Here is the solution code for your problem

var folderPath = "/just/some/folder/location"
var filePath = "this/way/for/the/file.txt"

//split with "/", splice for removing the first element and joining with a slash
filePath =  filePath.split("/").splice(1,filePath.length).join("/")
var joinedPath = path.join(folderPath, filePath);