JavaScript Regex: Replace |b| with <b> -

i've got funky json i'm dealing with, client sending these odd html tags, |b| , |\br| on place. want replace them ,
respectively.

i'm trying run following str.replace function on string, can't seem target pipe characters correctly.

string.replace(/[|b|]/, '<b>');

i've tried /|b|/, /\|b\|/

any appreciated

in regex, [] means "one of these characters", /[|b|]/ means | or b.

you want /\|b\|/g. without g, replaces once.