CODEWITHSUNDEEP
javascriptregex
anvd
anvd

Reputation: 4047

regular expression to remove the file name from the full url

With this code I will get the full path of the executed script, in this case services.js:

JS

var scripts = document.getElementsByTagName("script"),
src = scripts[scripts.length-1].src;

alert(src);

Output example:

file:///C:/Users/fel/Desktop/currencies-gh-pages/js/services.js

But i want an output like this:

file:///C:/Users/fel/Desktop/currencies-gh-pages/js/

Any idea?

Upvotes: 2

Views: 1642

Answers (5)

plalx
plalx

Reputation: 43728

"regular expression to remove the file name from the full url"

You could replace all the chars that arent / at the end of the string using the following regex /[^\/]+$/.

src.replace(/[^\/]+$/, '');

However, it seems to be the slower solution compared to some other solutions: http://jsperf.com/replace-speed-test

Upvotes: 1

kennebec
kennebec

Reputation: 104840

alert(src.substring(0,src.lastIndexOf('/')+1);

Upvotes: 1

adeneo
adeneo

Reputation: 318342

src.slice(0, src.lastIndexOf('/')) + '/';

FIDDLE

Upvotes: 1

machineaddict
machineaddict

Reputation: 3236

You could use http://phpjs.org/functions/dirname/

var txt = 'file:///C:/Users/fel/Desktop/currencies-gh-pages/js/services.js';

function dirname (path) {
  // http://kevin.vanzonneveld.net
  // +   original by: Ozh
  // +   improved by: XoraX (http://www.xorax.info)
  // *     example 1: dirname('/etc/passwd');
  // *     returns 1: '/etc'
  // *     example 2: dirname('c:/Temp/x');
  // *     returns 2: 'c:/Temp'
  // *     example 3: dirname('/dir/test/');
  // *     returns 3: '/dir'
  return path.replace(/\\/g, '/').replace(/\/[^\/]*\/?$/, '');
}

alert(dirname(txt));

Upvotes: 1

Ven
Ven

Reputation: 19040

I think you could split it instead.

src = src.split('/');
src.pop();
alert(src.join('/'));

Upvotes: 3

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