How to negative match regex in JavaScript string replace? [duplicate]

问题

This question already has answers here:

Strip all non-numeric characters from string in JavaScript (7 answers)

Closed 5 years ago.

I am trying to replace with a blank all characters except numbers, but this doesn't works:

s.replace(/(?!\d)/g, '')

Thanks!

回答1:

Use negative character classes:

s.replace(/[^0-9]+/g, '')

or s.replace(/[^\d]+/g, '')

or s.replace(/\D+/g, '')

来源：https://stackoverflow.com/questions/24419609/how-to-negative-match-regex-in-javascript-string-replace