Struct If 

pub struct If;

Evaluates an argument as truthy.

For block execution if the value is truthy the inner template is rendered otherwise each conditional is evaluated and the first one which returns a truthy value is rendered.

When executed in a statement this helper returns whether it’s argument is truthy.

Trait Implementations

impl Helper for If

fn call<'render, 'call>( &self, rc: &mut Render<'render>, ctx: &Context<'call>, template: Option<&'render Node<'render>>, ) -> HelperValue

Function that is called when this helper is resolved by the renderer for a statement or block.