dioxus/examples/core_reference/spreadpattern.rs

41 lines
1.2 KiB
Rust

//! Example: Spread pattern for Components
//! --------------------------------------
//!
//! Dioxus supports the "spread" pattern for manually building a component's properties. This is useful when props
//! are passed down from a parent, or it's more ergonomic to construct props from outside the rsx! macro.
//!
//! To use the spread pattern, simply pass ".." followed by a Rust expression. This pattern also supports overriding
//! values, using the manual props as the base and then modifying fields specified with non-spread attributes.
use dioxus::prelude::*;
pub fn Example(cx: Scope) -> Element {
let props = MyProps {
count: 0,
live: true,
name: "Dioxus",
};
cx.render(rsx! {
Example1 { ..props, count: 10, div {"child"} }
})
}
#[derive(Props)]
pub struct MyProps<'a> {
count: u32,
live: bool,
name: &'static str,
children: Element<'a>,
}
pub fn Example1(cx: Scope<MyProps>) -> Element {
let MyProps { count, live, name } = cx.props;
cx.render(rsx! {
div {
h1 { "Hello, {name}"}
h3 {"Are we alive? {live}"}
p {"Count is {count}"}
&cx.props.children
}
})
}