Tag Strucs
Golang Tips & Tricks #5 - blank identifier in structs
While working with structures, there’s a possibility to initialize the structure without providing the keys of fields.
type SomeSturct struct {
FirstField string
SecondField bool
}
// ...
myStruct := SomeSturct{"", false}
If we want to force other (or even ourselfs) to explicitly providing the keys, we can add _ struct{} in the end of the structure.
type SomeSturct struct {
FirstField string
SecondField bool
_ struct{}
}
// COMPILATION ERROR
myStruct := SomeSturct{"", false}
The code above will produce too few values in SomeSturct literal error. Try it yourself.
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