How to get back one folder path url using javascript

Question

I am trying to get one back folder path from the url.But not working.I do not know how to get the path?

I expected url name like http://localhost/testing/ from http://localhost/testing/flower/

Example:

const path = require('path');

var url = http://localhost/testing/flower/

var reqPath = path.join(url, './');

console.log( reqPath );

this is an issue that doesn't need its own module. Just remove the last /if it exists then substring from start until last occurence of /. Add som handling of root path on that an you're golden — Artog
– Artog, Commented Jul 29, 2019 at 13:24

Alexander Lallier · Accepted Answer · 2019-07-29 13:22:23Z

1

To go up a directory you use ../

const path = require('path');

var url = http://localhost/testing/flower/

var reqPath = path.join(url, '../');

console.log( reqPath );

answered Jul 29, 2019 at 13:22

Alexander Lallier

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1 Comment

Krzysztof Krzeszewski Over a year ago

@charlietfl its is a valid call, i recommend looking up documentation for path nodejs.org/api/path.html#path_path_join_paths

Krzysztof Krzeszewski · Accepted Answer · 2019-07-29 13:50:14Z

1

I would recommend simple manual parsing of the string

function goUp(url){
  if (url.endsWith("/")) url = url.substring(0,url.length-1)
  const lastSlashPosition = url.lastIndexOf("/"); 

  return lastSlashPosition <=7 ? url: url.substring(0,lastSlashPosition);
}


console.log(goUp("http://localhost/"));
console.log(goUp("http://localhost/testing/flower"));
console.log(goUp("http://localhost/testing/flower/"));

edited Jul 29, 2019 at 13:50

answered Jul 29, 2019 at 13:32

Krzysztof Krzeszewski

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1 Comment

Artog Over a year ago

Make sure to check for urls ending with a slash and check that the url isn't allready at the top

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