How to extract a particular string from the given string in nodejs

Question

I have strings -

[ '/home/user/Music/test/project/iit/feature/ABC/release1/PC/en_smoke/smoke_01-login.feature' ]
[ '/home/user/Music/test/project/iit/feature/ABC/release1/PC/en_smoke/smoke_02-logout.feature' ]
[ '/home/user/Music/test/project/iit/feature/ABC/release1/PC/en_smoke/smoke_03-createaccount.feature' ]

I need to extract the string the string "smoke_xx"so whatever the number comes along with smoke_, I need to extract it. I tried many options but didnt worked out. I am new to nodejs. Please help.

@LawrenceCherone smoke_\s*(\+\d+). As I said I am very new to regex. so I am not sure. — wanderors
– wanderors, Commented Mar 20, 2020 at 18:40
cool, /smoke_(\d+)-/gm for number or (smoke_(\d+))- for inc smoke_ — Lawrence Cherone
– Lawrence Cherone, Commented Mar 20, 2020 at 18:44

grodzi · Accepted Answer · 2020-03-20 18:48:43Z

1

with regex of @Lawrence Cherone and use of String.prototype.match

[
  '/home/user/Music/test/project/iit/feature/ABC/release1/PC/en_smoke/smoke_01-login.feature',
  '/home/user/Music/test/project/iit/feature/ABC/release1/PC/en_smoke/smoke_02-logout.feature',
  '/home/user/Music/test/project/iit/feature/ABC/release1/PC/en_smoke/smoke_03-createaccount.feature'
].forEach(path => {
  const smoke = path.match(/smoke_\d+/)[0]
  console.log('smoke :', smoke)
})

answered Mar 20, 2020 at 18:48

grodzi

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CoderX · Accepted Answer · 2020-03-20 18:51:06Z

1

It will work with following regex: (?i)\bsmoke\s*_\s*\d+ you can check the link to view result: https://regex101.com/r/z8uUTf/2

answered Mar 20, 2020 at 18:51

CoderX

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