Remove suffixes from numbers

Question

I'm looking for a way to remove suffixes "m", "k", "b", or "%" from numbers in Javascript.

I've successfully matched all digits which are followed by the letters I care about:

\b[\d\.]+[mkb%]\b

Debuggex Demo

Given this set:

10.0 20.0k 30k 40k40 50m 60m6 m 70 m 80b80b 90%

I'd like to remove the suffixes from the 20, 30, 50, 90, and the trailing one from the 80. (the others don't have a word boundary after them)

I'm not clear on how to capture (and then remove) only the suffix portion of this. Little help?

Answer 1

Use \b at front and also capture only the digit part. So that the captured chars would be back-referenced in the replacement part.

string.replace(/\b([\d\.]+)[mkb]\b/g, "$1")

DEMO

Answer 2

Put the capture group around just the numeric part, not the whole thing.

/([\d.]+)[mkb]\b/