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FindIndexes

func FindIndexes[T any](slice []T, predicate func(value T, index int, slice []T) bool) []int

FindIndexes takes a slice of type T and executes the passed in predicate function for each element in the slice, returning a slice containing all indexes for which the predicate returned true. The function is passed the current element, the current index and the slice itself as function arguments.

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package main

import (
    "fmt"
    "strings"

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

func main() {
    friends := []string{"John", "Bob", "Mendy", "Suzy", "John"}

    result := sliceutils.FindIndexes(friends, func(value string, index int, slice []string) bool {
        return value == "John"
    })

    fmt.Print(result) // [0, 4]
}