optional

package

v0.2.0 Latest Latest Go to latest Published: Mar 8, 2025 License: MIT Imports: 2 Imported by: 0

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type Elem[E any] struct {
	// contains filtered or unexported fields
}

Elem represents an optional value.

func Empty[E any]() Elem[E]

Empty returns an empty optional value.

func Of[E any](v E) Elem[E]

Of returns an optional value with the given value.

func (o Elem[E]) IsEmpty() bool

IsEmpty returns true if the value is not present.

func (o Elem[E]) IsNotEmpty() bool

IsNotEmpty returns true if the value is present.

func (o Elem[E]) IsPresent() bool

IsPresent returns true if the value is present.

func (o Elem[E]) MustGet() E

MustGet returns the value if present, otherwise panics.

func (o Elem[E]) MustGetf(msg string, args ...any) E

MustGetf returns the value if present, otherwise panics with a custom message.