將PHP字符串函數轉換爲Javascript/jQuery

Question

這是我想要轉換成Javascript/jQuery的PHP代碼。有任何想法嗎？

$root_folder = 'es'; 
$url = "http://domainNamehere.com/event/test-event-in-the-future/"; 

$p = strpos($url, '/', 8); 
$url_new = sprintf('%s/%s/%s', substr($url, 0, $p), $root_folder, substr($url, $p+1)); 

Answer 1

var root_folder = "es", 
    url = "http://domainNamehere.com/event/test-event-in-the-future/", 
    url_new = "", 
    path_finder = /^(((http)s?:)?\/\/[^\/]+\/)/i; 

url_new = url.replace(path_finder, "$1" + root_folder + "/"); 

Answer 2

strpos() ~ .indexOf() 
substr() ~ .substring() 
sprintf() ~ + 

Answer 3

PHP.js提供了很多常用的PHP函數接口爲JavaScript。