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Deref

func Deref[T any](ptr *T, def T) T

Deref dereferences ptr and returns the value it points to if not nil, or else returns def (the default value). This provides safe pointer dereferencing without nil checks.

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package main

import (
    "fmt"

    ptr "github.com/Goldziher/go-utils/ptrutils"
)

func main() {
    numPtr := ptr.To(42)
    value := ptr.Deref(numPtr, 0)
    fmt.Println(value)  // 42

    // Safe handling of nil pointers
    var nilPtr *int
    defaultValue := ptr.Deref(nilPtr, 99)
    fmt.Println(defaultValue)  // 99
}