mirror of
https://github.com/DioxusLabs/dioxus
synced 2024-12-13 06:12:32 +00:00
6c323e9fc5
* Move getting started to Guide * Clean up summary and getting started * Shorten intro by moving stuff to individual platform docs * Make intro even shorter, summarize features * Further cleanup; move development-related docs to separate section * Make `guide` a crate. Turn code samples into examples so that we can check if they compile * Rewrite "Describing the UI": * Focus on RSX syntax (interactivity covered in later chapters); make sure samples are tested; concise language * Move some "special attribute" samples to the `examples` directory * Simplify introduction to components * Simplify introduction to component props * Document Prop features; add code samples * Simplify component children docs * Interactivity: better introduction to events * Hooks: better introduction * Remove outdated doc * Introducs use_ref * Simplify User Input chapter * Document event handler props * Meme editor example * Meme editor walkthrough * Add dark mode example * Guide for context; dark mode example * Guide: custom hooks * Guide: conditional rendering * Guide: rendering lists * Guide: rendering lists + keys * Move remaining infor from Reference to guide * Delete reference book
71 lines
1.6 KiB
Rust
71 lines
1.6 KiB
Rust
#![allow(non_snake_case, unused)]
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//! This example shows what *not* to do
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use std::collections::HashMap;
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use dioxus::prelude::*;
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fn main() {}
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fn AntipatternNestedFragments(cx: Scope<()>) -> Element {
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// ANCHOR: nested_fragments
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// ❌ Don't unnecessarily nest fragments
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let _ = cx.render(rsx!(
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Fragment {
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Fragment {
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Fragment {
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Fragment {
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Fragment {
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div { "Finally have a real node!" }
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}
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}
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}
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}
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}
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));
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// ✅ Render shallow structures
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cx.render(rsx!(
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div { "Finally have a real node!" }
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))
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// ANCHOR_END: nested_fragments
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}
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#[derive(PartialEq, Props)]
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struct NoKeysProps {
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data: HashMap<u32, String>,
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}
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fn AntipatternNoKeys(cx: Scope<NoKeysProps>) -> Element {
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// ANCHOR: iter_keys
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let data: &HashMap<_, _> = &cx.props.data;
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// ❌ No keys
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cx.render(rsx! {
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ul {
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data.values().map(|value| rsx!(
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li { "List item: {value}" }
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))
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}
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});
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// ❌ Using index as keys
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cx.render(rsx! {
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ul {
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cx.props.data.values().enumerate().map(|(index, value)| rsx!(
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li { key: "{index}", "List item: {value}" }
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))
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}
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});
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// ✅ Using unique IDs as keys:
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cx.render(rsx! {
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ul {
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cx.props.data.iter().map(|(key, value)| rsx!(
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li { key: "{key}", "List item: {value}" }
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))
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}
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})
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// ANCHOR_END: iter_keys
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}
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