12 mar 2019 · The blank identifier (i e _) in Go is used to indicate “void” or “nothing” Conceptually it is similar to /dev/null
Go is a new experimental concurrent garbage-collected programming The blank identifier can be assigned or declared with any value of any type
15 jui 2011 · Source is UTF-8 White space: blank tab newline carriage return Identifiers are letters and numbers (plus '_')
The blank identifier can be assigned or declared with any value of any type with the value discarded harmlessly For testing just presence in a map use the
Why Go? • “No major systems language has appeared in use the os package (http://golang org/pkg/os/) use the blank identifier `_` _ c := vals()
The blank identifier may be used whene ver synt ax requires a variable name but prog ram log ic do es not for ins tance to dis card an unwante d lo op
Learn Go Programming 2 1 Comments 2 2 Statements 2 3 Identifiers 2 3 1 Blank identifier 2 3 2 Predeclared identifiers 2 4 Keywords 2 5 package
This page intentionally left blank Pro jec ts bui lt using the go to ol use only file and identifier names and an occ asional speci al comment to deter
23 nov 2011 · Simple Example: Compile helloworld go for arm architecture on Linux machine assign to the blank identifier to avoid unnecessary garbage:
blank identifier before listing out the import path 07 _ "github com/goinaction/code/chapter2/sample/matchers" Listing 2 3 main go: line 01