gg

Documentation

Overview

Package gg implements simple "extensions" to Go language. Based on https://github.com/icza/gog

Index

• func FirstOr[T comparable](or T, values ...T) T
• func If[T comparable](v T, orElse T) T
• func P[T any](v T) *T
• func V[T any](p *T) T

Functions

func FirstOr

func FirstOr[T comparable](or T, values ...T) T

FirstOr is a generic helper function that returns the first non-zero value from a list of comparable values, or a default value if all the values are zero.

func If

func If[T comparable](v T, orElse T) T

If returns v if it is a non-zero value, orElse otherwise.

This is similar to elvis operator (?:) in Groovy and other languages. Note: Different from the real elvis operator, the orElse expression will always get evaluated.

func P

func P[T any](v T) *T

P returns a pointer to the input value

func V

func V[T any](p *T) T

V returns the value of the input pointer, or a zero value if the input pointer is nil.