How to print the values of slices

Question

I want to see the values which are in the slice  How can I print them   projects   Project

User · Answer

I wrote a package named Pretty Slice  You can use it to visualize slices  and their backing arrays  etc  package main  import pretty  quot github com inancgumus prettyslice quot   func main         nums      int 1  9  5  6  4  8      odds    nums  3      evens    nums 3        nums 1   nums 3    9  6     pretty Show  quot nums quot   nums      pretty Show  quot odds   nums  3  quot   odds      pretty Show  quot evens  nums 3   quot   evens      This code is going produce and output like this one    For more details  please read  https   github com inancgumus prettyslice

User · Answer

If you just want to see the values of an array without brackets  you can use a combination of fmt Sprint   and strings Trim    a      string  a    b   fmt Print strings Trim fmt Sprint a          fmt Print a    Returns   a b  a b    Be aware though that with this solution any leading brackets will be lost from the first value and any trailing brackets will be lost from the last value  a      string   a      b    fmt Print strings Trim fmt Sprint a         fmt Print a    Returns   a   b   a   b     For more info see the documentation for strings Trim

User · Answer

For a   string  you can use strings Join     s      string  foo    bar    baz   fmt Println strings Join s            output  foo  bar  baz

User · Answer

You could use a for loop to print the   Project as shown in  VonC excellent answer  package main  import  quot fmt quot   type Project struct  name string    func main         projects      Project   quot p1 quot      quot p2 quot        for i    range projects           p    projects i          fmt Println p name    p1  p2

User · Answer

You can try the  v    v or   v verbs of go fmt   fmt Printf   v   projects    If your array  or here slice  contains struct  like Project   you will see their details  For more precision  you can use   v to print the object using Go-syntax  as for a literal    v  the value in a default format      when printing structs  the plus flag    v  adds field names   v a Go-syntax representation of the value   For basic types  fmt Println projects  is enough     Note  for a slice of pointers  that is    Project  instead of   Project   you are better off defining a String   method in order to display exactly what you want to see  or you will see only pointer address   See this play golang example

User · Answer

fmt Printf   is fine  but sometimes I like to use pretty print package   import  github com kr pretty  pretty Print

User · Answer

I prefer fmt Printf    q   arr  which will print    some   values   list     https   play golang org p XHfkENNQAKb

User · Answer

If you want to view the information in a slice in the same format that you d use to type it in  something like   quot one quot    quot two quot    quot three quot     here s a code example showing how to do that  package main  import        quot fmt quot       quot strings quot     func main         test      string  quot one quot    quot two quot    quot three quot          The slice of data     semiformat    fmt Sprintf  quot  q n quot   test         Turn the slice into a string that looks like   quot one quot   quot two quot   quot three quot       tokens    strings Split semiformat   quot   quot         Split this string by spaces     fmt Printf strings Join tokens   quot    quot            Join the Slice together  that was split by spaces  with commas    Go Playground

[arrays] How to print the values of slices

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