Function sauron::prelude::empty_attr [−][src]
pub fn empty_attr<MSG>(
) -> Attribute<&'static str, &'static str, AttributeValue, Callback<Event, MSG>>
Expand description
a utility function to return create an empty attr, useful for cases where branch expression need to return an attribute which otherwise it can not produce example:
use sauron_core::html::attributes::{title,empty_attr}; use sauron_core::Attribute; let img_title = Some("this is the image"); let result: Attribute<()> = if let Some(img_title) = img_title{ title(img_title) } else{ empty_attr() }; assert_eq!(title("this is the image"), result);