mirror of
https://github.com/MontFerret/ferret.git
synced 2024-12-16 11:37:36 +02:00
e64ad4ec0e
* #33 Lib cleanup. Added WAIT_CLASS and WAIT_CLASS_ALL functions * #33 Fixed attr update * #33 HTMLElement.WaitForClass * #33 Updated HTMLDocument.WaitForClass
41 lines
1.0 KiB
Go
41 lines
1.0 KiB
Go
package arrays
|
|
|
|
import (
|
|
"context"
|
|
"github.com/MontFerret/ferret/pkg/runtime/core"
|
|
"github.com/MontFerret/ferret/pkg/runtime/values"
|
|
)
|
|
|
|
/*
|
|
* Returns the element of an array at a given position.
|
|
* It is the same as anyArray[position] for positive positions, but does not support negative positions.
|
|
* @param array (Array) - An array with elements of arbitrary type.
|
|
* @param index (Int) - Position of desired element in array, positions start at 0.
|
|
* @returns (Read) - The array element at the given position.
|
|
* If position is negative or beyond the upper bound of the array, then NONE will be returned.
|
|
*/
|
|
func Nth(_ context.Context, args ...core.Value) (core.Value, error) {
|
|
err := core.ValidateArgs(args, 2, 2)
|
|
|
|
if err != nil {
|
|
return values.None, err
|
|
}
|
|
|
|
err = core.ValidateType(args[0], core.ArrayType)
|
|
|
|
if err != nil {
|
|
return values.None, err
|
|
}
|
|
|
|
err = core.ValidateType(args[1], core.IntType)
|
|
|
|
if err != nil {
|
|
return values.None, err
|
|
}
|
|
|
|
arr := args[0].(*values.Array)
|
|
idx := args[1].(values.Int)
|
|
|
|
return arr.Get(idx), nil
|
|
}
|