How to trim leading and trailing white spaces of a string

Question

Which is the effective way to trim the leading and trailing white spaces of string variable in Go

User · Answer

There s a bunch of functions to trim strings in go   See them there   Trim  Here s an example  adapted from the documentation  removing leading and trailing white spaces    fmt Printf    q    strings Trim   Achtung

User · Answer

peterSO has correct answer  I am adding more examples here   package main  import        fmt      strings  strings     func main          test      t pdftk 2 0 2   n      result    strings TrimSpace test      fmt Printf  Length of  q is  d n   test  len test       fmt Printf  Length of  q is  d n n   result  len result        test     n r pdftk 2 0 2  n r      result   strings TrimSpace test      fmt Printf  Length of  q is  d n   test  len test       fmt Printf  Length of  q is  d n n   result  len result        test     n r n r pdftk 2 0 2  n r n r      result   strings TrimSpace test      fmt Printf  Length of  q is  d n   test  len test       fmt Printf  Length of  q is  d n n   result  len result        test     r pdftk 2 0 2  r      result   strings TrimSpace test      fmt Printf  Length of  q is  d n   test  len test       fmt Printf  Length of  q is  d n n   result  len result          You can find this in Go lang playground too

User · Answer

Just as  Kabeer  has mentioned  you can use TrimSpace and here is an example from golang documentation   package main  import        fmt       strings     func main         fmt Println strings TrimSpace    t n Hello  Gophers  n t r n

User · Answer

A quick string  quot GOTCHA quot  with JSON Unmarshall which will add wrapping quotes to strings   example  the string value of   quot first name quot   quot  I have whitespace  quot   will convert to  quot   quot  I have whitespace   quot  quot   Before you can trim anything  you ll need to remove the extra quotes first  playground example    ScrubString is a string that might contain whitespace that needs scrubbing  type ScrubString string     UnmarshalJSON scrubs out whitespace from a valid json string  if any  func  s  ScrubString  UnmarshalJSON data   byte  error       ns    string data         Make sure we don t have a blank string of  quot   quot   quot  quot       if len ns   gt  2  amp  amp  ns 0       quot    amp  amp  ns len ns        quot              s    quot  quot          return nil              Remove the added wrapping quotes      ns  err    strconv Unquote ns      if err    nil           return err              We can now trim the whitespace       s   ScrubString strings TrimSpace ns        return nil

User · Answer

package main  import        fmt       strings     func main         fmt Println strings TrimSpace    t n Hello  Gophers  n t r n           Output        Hello  Gophers   And simply follow this link - https   golang org pkg strings  TrimSpace

User · Answer

For example   package main  import        fmt       strings     func main         s      t Hello  World n       fmt Printf   d  q n   len s   s      t    strings TrimSpace s      fmt Printf   d  q n   len t   t      Output   16   t Hello  World n   12  Hello  World

User · Answer

For trimming your string  Go s  strings  package have TrimSpace    Trim   function that trims leading and trailing spaces   Check the documentation for more information

[go] How to trim leading and trailing white spaces of a string?

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