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MaxBy

func MaxBy[T any, O cmp.Ordered](slice []T, selector func(T) O) *T

MaxBy returns a pointer to the element with the maximum value as determined by the selector function. Returns nil if the slice is empty.

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package main

import (
    "fmt"

    "github.com/Goldziher/go-utils/sliceutils"
)

func main() {
    type Product struct {
        Name  string
        Price float64
    }

    products := []Product{
        {"Apple", 1.50},
        {"Banana", 0.75},
        {"Cherry", 2.00},
    }

    expensive := sliceutils.MaxBy(products, func(p Product) float64 {
        return p.Price
    })

    if expensive != nil {
        fmt.Printf("Most expensive: %s at $%.2f\n", expensive.Name, expensive.Price)
        // Most expensive: Cherry at $2.00
    }
}