1
0
mirror of https://github.com/MontFerret/ferret.git synced 2024-12-16 11:37:36 +02:00
ferret/pkg/stdlib/html/elements_count.go
Tim Voronov c773509469
Added missed errors to HTMLElement interface (#375)
* Added missed errors to HTMLElement interface

* Fixed test suit
2019-09-06 21:02:41 -04:00

24 lines
673 B
Go

package html
import (
"context"
"github.com/MontFerret/ferret/pkg/runtime/core"
"github.com/MontFerret/ferret/pkg/runtime/values"
)
// ElementsCount returns a number of found HTML elements by a given CSS selector.
// Returns an empty array if element not found.
// @param docOrEl (HTMLDocument|HTMLNode) - Parent document or element.
// @param selector (String) - CSS selector.
// @returns (Int) - A number of found HTML elements by a given CSS selector.
func ElementsCount(ctx context.Context, args ...core.Value) (core.Value, error) {
el, selector, err := queryArgs(args)
if err != nil {
return values.None, err
}
return el.CountBySelector(ctx, selector)
}