Extract Part Of A Url

I need to extract the hello/world part of this URL: http://example.com/#tags/hello/world I'm totally confussed with split, replace and concat. What's the best way to do it?

Solution 1:

var result = "http://example.com/#tags/hello/world".replace("http://example.com/#tags/","");

For the fastest way use this

var result = "http://example.com/#tags/hello/world".slice(25);

Solution 2:

try

functionremovePrefix(prefix,s) {
    return s.substr(prefix.length);
}
removePrefix('http://example.com/#tags/','http://example.com/#tags/hello/world')

Solution 3:

I'd do this:

var newString = oldString.replace('http://example.com/#tags/', '');

Solution 4:

yourString = yourString.replace(/http:\/\/example\.com\/#tags\//, '');

Solution 5:

Split creates an array out of a string using a character as a delimiter. so that is not really what you want, since you're trying to keep the end of the string, including what would be the natural delimiter.

substr removes the first n characters of a string. so you could do

var remove_string = 'http://example.com/#tags/'
path.substr(remove_string.length); 

and it would work just fine.

Replace finds a given regular expression and replaces it with the second argument. so you could also do (note that the regular expression is contained within / /)

path = path.replace(/^http:\/\/example.com\/#tags\//,"")

A little uglier because of the escaping of characters but a bit more succinct.

Also as a previous poster did you could just pass the string to be matched to replace instead of the regex.