gotilty / gotil

package gotil

import (

	"github.com/gotilty/gotil/internal"

)

// GroupBy iterates over elements of collection, returns an object of fist element predicate if returns true for.

// 		data := []float64{5, 10.5, 10, 20, 10.75, 100, 4.23, 5.15, 5.99, 100.0001}

// 		if result, err := GroupBy(data, func(a interface{}, i interface{}) interface{} {

// 			return math.Floor(a.(float64))

// 		}); err == nil {

// 			fmt.Println(result)

// 		}

// 		// Output: map[4:[4.23] 5:[5 5.15 5.99] 10:[10.5 10 10.75] 20:[20] 100:[100 100.0001]]

func GroupBy(a interface{}, f func(val, i interface{}) interface{}) (interface{}, error) {

	return internal.GroupBy(a, f)

}