1
0
mirror of https://github.com/MontFerret/ferret.git synced 2024-12-16 11:37:36 +02:00
ferret/pkg/stdlib/arrays/shift.go

42 lines
792 B
Go
Raw Normal View History

package arrays
import (
"context"
"github.com/MontFerret/ferret/pkg/runtime/core"
"github.com/MontFerret/ferret/pkg/runtime/values"
)
/*
* Returns a new array without the first element.
* @param array (Array) - Target array.
* @returns (Array) - Copy of an array without the first element.
*/
func Shift(_ context.Context, args ...core.Value) (core.Value, error) {
err := core.ValidateArgs(args, 1, 1)
if err != nil {
return values.None, err
}
err = core.ValidateType(args[0], core.ArrayType)
if err != nil {
return values.None, err
}
arr := args[0].(*values.Array)
length := int(arr.Length())
result := values.NewArray(length)
arr.ForEach(func(value core.Value, idx int) bool {
if idx != 0 {
result.Push(value)
}
return true
})
return result, nil
}