C
"5 бл 5 а 55 бла бла"
.split(' ')
.filter(w => word !== '5')
.join(' ')
)
Size: a a a
C
C
В
В
C
C
AG
В
R
OJ
М
AG
OJ
В
VB
C
> s = "5 5 555 asdf" '5 5 555 asdf'
> reg = /^([^5]*)(5)([^5])*(5)(.*)$/
/^([^5]*)(5)([^5])*(5)(.*)$/
> s.match(reg).slice(1).filter((ss, i) => ![,true,,true][i]).join('')
AG
> s = "5 5 555 asdf" '5 5 555 asdf'
> reg = /^([^5]*)(5)([^5])*(5)(.*)$/
/^([^5]*)(5)([^5])*(5)(.*)$/
> s.match(reg).slice(1).filter((ss, i) => ![,true,,true][i]).join('')