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ferret/pkg/stdlib/arrays/last.go
Tim Voronov e64ad4ec0e
Feature/#33 wait class function (#63)
* #33 Lib cleanup. Added WAIT_CLASS and WAIT_CLASS_ALL functions

* #33 Fixed attr update

* #33 HTMLElement.WaitForClass

* #33 Updated HTMLDocument.WaitForClass
2018-10-06 22:33:39 -04:00

31 lines
607 B
Go

package arrays
import (
"context"
"github.com/MontFerret/ferret/pkg/runtime/core"
"github.com/MontFerret/ferret/pkg/runtime/values"
)
/*
* Returns the last element of an array.
* @param array (Array) - The target array.
* @returns (Read) - Last element of an array.
*/
func Last(_ 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, nil
}
arr := args[0].(*values.Array)
return arr.Get(arr.Length() - 1), nil
}