提取URL末尾字符之间的字符串

Question

I have the following example url: http://example.com/this/is/the/end/

I need to extract the last piece of the url, between the last two /

There may be characters after the last / but it's always between the last two / that I need.

This is what I'm trying, I think it's pretty close but it only returns the d of end

How can I extract the full end ?

Javascript

var str = 'http://example.com/this/is/the/end/';

var string = str.substring(str.lastIndexOf("/")-1,str.lastIndexOf("/"));

Here's a fiddle

Answer 1

Use lastIndexOf with start from index as second parameter to extract the text between the two slashes.

 var str = 'http://example.com/this/is/the/end/'; var lastIndex = str.lastIndexOf('/'); var string = str.substring(str.lastIndexOf("/", lastIndex - 1) + 1, lastIndex); // ^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^^ : Get the last `/` index by starting search from `lastIndex - 1` index. console.log(string); 

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You can also use string and array functions as follow.

 var str = 'http://example.com/this/is/the/end/'; var string = str.split('/').slice(-2)[0]; console.log(string); 

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Also, regex can be used.

Regex Demo and Explanation

 var str = 'http://example.com/this/is/the/end/'; var string = str.match(/\\/(\\w+)\\/[^\\/]*?$/)[1]; console.log(string); 

Answer 2

This is a good place to use regular expressions:

Regex Live Demo

var str = 'http://example.com/this/is/the/end/';
var re = /\/([^\/]*)\/[^\/]*$/;
//        \/  - look for /
//          ([^\/]*) - capture zero or more characters that aren't a /
//                  \/ - look for last /
//                    [^\/]* - look for more chars that aren't /
//                          $ - match the end of the string
var last = re.exec(str)[1];
console.log(last); //end

Answer 3

您可以简单地拆分和切片

'http://example.com/this/is/the/end/'.split('/').slice(-2)[0]