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Drop

func Drop[K comparable, V any](mapInstance map[K]V, keys []K) map[K]V

Drop takes a map with keys K and values V, and a slice of keys K, dropping all the key-value pairs that match the keys in the slice.

Note: this function will modify the passed in map. To get a different object, use the Copy function to pass a copy to this function.

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package main

import (
    "fmt"

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

func main() {
    vegetables := map[string]int{
        "potatoes": 5,
        "carrots":  10,
        "tomatoes": 3,
    }

    // Drop will modify the original map
    result := maputils.Drop(vegetables, []string{"carrots", "tomatoes"})

    fmt.Print(result) // { "potatoes": 5 }
    fmt.Print(vegetables) // { "potatoes": 5 } - original map was modified

    // To avoid modifying the original, use Copy first
    vegetables2 := map[string]int{
        "potatoes": 5,
        "carrots":  10,
        "tomatoes": 3,
    }

    copied := maputils.Copy(vegetables2)
    result2 := maputils.Drop(copied, []string{"carrots"})

    fmt.Print(result2) // { "potatoes": 5, "tomatoes": 3 }
    fmt.Print(vegetables2) // { "potatoes": 5, "carrots": 10, "tomatoes": 3 } - original unchanged
}