preg_replace with function in javascript

[Qiao]

Hi, people!

I need to find all numbers and multiply them by ten in
document.getElementById('numbers').innerHTML

I know that it can be done by php with

$text = preg_replace("|\d+|e", "\\0*10", $text)

But how it can be done by javascript?

[priti]

This might be useful:http://www.javascriptkit.com/jsref/regexp.shtml

[Qiao]

Yes, thanks, it is quite useful.
But i just know how to replace with fixed string
str.replace(/\d+/g, "12345")

But is it possible in JavaScript to replace it with function? Something like
str.replace(/\d+/g, \0*10) ?

[priti]

http://www.webreference.com/js/column5/values.html

[Qiao]

that is very close!

But what is wrong with

str = "123";
document.write (str.replace(/(\d+)/, "$1"*1))

Here, $1 just cannot be converted to number. It prints NaN.
Though if it is "$1"+1, it prints 1231 (as normal string).

Is it possible to convert $1 to number?