如何从URL中获取数字？

Question

我有空白页上此javascript：

Please show this number to your supplier: 
<script> 
document.write(document.URL); 
</script> 

因此它显示

"Please show this number to your supplier: http://www.exaple.com/invoices/123456789" 

如何从URL中提取只有数字，所以我会得到这个？串的

"Please show this number to your supplier: 123456789" 

Answer 1

if (location.search != "") 
{ 
var x = location.search.substr(1).replace(/%2520/g,' ').split(";") 
for (var i=0; i<x.length; i++) 
{ 
    var y = x[i].split("="); 
    document.write(y[0]) 
} 
} 

Answer 2

document.URL.substring(document.URL.lastIndexOf('/'), document.URL.length); 

Answer 3

v = 'http://www.exaple.com/invoices/123456789'; 
number = v.replace(/[^0-9]/g,""); 

console.log(number); //123456789 

Answer 4

var patt=/(\d+)$/; 
var url=document.URL; 
var num=0; 
if (url.match(patt)) { 
    var num_str=url.match(patt)[1]; 
    num=parseInt(num_str, 10); 
} 

$ =端。

RegExp。