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ferret/pkg/stdlib/html/element_exists.go
Tim Voronov b323a984cc
Added errors to ClickX methods and added existence check ()
* Added errors to ClickX methods and added existence check

* Fixes

* Return None from Iterator when an error occurs
2019-07-26 13:22:06 -04:00

23 lines
668 B
Go

package html
import (
"context"
"github.com/MontFerret/ferret/pkg/runtime/core"
"github.com/MontFerret/ferret/pkg/runtime/values"
)
// ElementExists returns a boolean value indicating whether there is an element matched by selector.
// @param docOrEl (HTMLDocument|HTMLNode) - Parent document or element.
// @param selector (String) - CSS selector.
// @returns (Boolean) - A boolean value indicating whether there is an element matched by selector.
func ElementExists(ctx context.Context, args ...core.Value) (core.Value, error) {
el, selector, err := queryArgs(args)
if err != nil {
return values.None, err
}
return el.ExistsBySelector(ctx, selector)
}