Opt

Opt is a Go package for safe abstractions over optional values.

Inspired by the Option type in Rust and follows the same ideas and function signatures.

Install

go get github.com/metafates/opt

Usage

package main

import (
    "fmt"
    "math"
    "github.com/metafates/opt"
)

func divide(numerator, denominator float64) Opt[float64] {
    if denominator == 0 {
        return None[float64]()
    }

    return Some(numerator / denominator)
}

func main() {
    result := divide(2, 3)

    fmt.Println(result.UnwrapOr(math.MaxInt))
}