Method Var

flag.go:847–849

Var defines a flag with the specified name and usage string. The type and value of the flag are represented by the first argument, of type Value, which typically holds a user-defined implementation of Value. For instance, the caller could create a flag that turns a comma-separated string into a slic

(value Value, name string, usage string)

// of strings by giving the slice the methods of Value; in particular, Set would
// decompose the comma-separated string into the slice.
func (f *FlagSet) Var(value Value, name string, usage string) {
	f.VarP(value, name, "", usage)
}

// VarPF is like VarP, but returns the flag created
func (f *FlagSet) VarPF(value Value, name, shorthand, usage string) *Flag {