In below code req.body.urlOfFolder largest string with /, This string last segment I want to split or remove I tried with split (see below code), So how to remove last segement ?

 console.log(req.body.urlOfFolder); //  131/131/980/981/982/983/984/985/986/987/988

 var urloffolder =  req.body.urlOfFolder.split('/')[0];
 console.log(urloffolder); // 131 (this output i get)

 console.log(urloffolder); // 131/131/980/981/982/983/984/985/986/987 (this output i want)

In below code req.body.urlOfFolder largest string with /, This string last segment I want to split or remove I tried with split (see below code), So how to remove last segement ?

 console.log(req.body.urlOfFolder); //  131/131/980/981/982/983/984/985/986/987/988

 var urloffolder =  req.body.urlOfFolder.split('/')[0];
 console.log(urloffolder); // 131 (this output i get)

 console.log(urloffolder); // 131/131/980/981/982/983/984/985/986/987 (this output i want)

• javascript
• node.js

4 Answers 4

You could split by slashes, pop off the last 988 that you don't want, then join again:

const url = '131/131/980/981/982/983/984/985/986/987/988';
const splits = url.split('/');
splits.pop();
const fixedUrl = splits.join('/');
console.log(fixedUrl);

Another option would be to use a regular expression:

const url = '131/131/980/981/982/983/984/985/986/987/988';
const fixedUrl = url.match(/\d+(?:\/\d+)+(?=\/\d+$)/)[0];
console.log(fixedUrl);

One more way of doing is using substr and lastIndexOf

let str = "131/131/980/981/982/983/984/985/986/987/988";

let op = str.substr(0,str.lastIndexOf('/'));

console.log(op);

Regex method

let str = "131/131/980/981/982/983/984/985/986/987/988";

let op = str.match(/.*(?=\/)/g)[0];

console.log(op);

Try following using Array.pop

let str = "131/131/980/981/982/983/984/985/986/987/988";
let temp = str.split("/"); // create array split by slashes
temp.pop(); // remove the last value 988 in our case
console.log(temp.join("/")); // join the values 

You can use .splice(-1) or .pop() to remove the last element from your split array and then .join('/') to rejoin your split string with /:

.split('/') gives:

['131', '131', '980', '981', '982', '983', '984', '985', '986', '987', '988']

.splice(-1) or .pop() turns the above array into (removes last element):

['131', '131', '980', '981', '982', '983', '984', '985', '986', '987'] 

.join('/') turns the above array into a string:

"131/131/980/981/982/983/984/985/986/987"

const numbers = "131/131/980/981/982/983/984/985/986/987/988"
const numbersArray = numbers.split('/');
numbersArray.splice(-1);

const newNumbers = numbersArray.join('/');
console.log(newNumbers);

The above sequences can also be achieved using .reduce:

const numbers = "131/131/980/981/982/983/984/985/986/987/988"
const newNumbers = numbers.split('/').reduce((acc, elem, i, arr) => i == arr.length-1 ? acc : acc+'/'+elem);

console.log(newNumbers);