javascript - 如何从 URL 中只获取数字？

Question

我在空白页上有这个 JavaScript:

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

所以它显示

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

如何从网址中仅提取数字才能得到这个？

"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])
}
}