Merge branch 'many_optional_attributes' into pr/atty303/1349

examples/rsx_usage.rs

@@ -53,6 +53,7 @@ fn App(cx: Scope) -> Element {
     let formatting = "formatting!";
     let formatting_tuple = ("a", "b");
     let lazy_fmt = format_args!("lazily formatted text");
+    let asd = 123;
     cx.render(rsx! {
         div {
             // Elements
@@ -80,6 +81,10 @@ fn App(cx: Scope) -> Element {
                 // pass simple rust expressions in
                 class: lazy_fmt,
                 id: format_args!("attributes can be passed lazily with std::fmt::Arguments"),
+                class: "asd",
+                class: "{asd}",
+                // if statements can be used to conditionally render attributes
+                class: if formatting.contains("form") { "{asd}" },
                 div {
                     class: {
                         const WORD: &str = "expressions";

examples/tailwind/src/main.rs

@@ -14,9 +14,13 @@ fn main() {
 }
 
 pub fn app(cx: Scope) -> Element {
+    let grey_background = true;
     cx.render(rsx!(
         div {
-            header { class: "text-gray-400 bg-gray-900 body-font",
+            header {
+                class: "text-gray-400 body-font",
+                // you can use optional attributes to optionally apply a tailwind class
+                class: if grey_background { "bg-gray-900" },
                 div { class: "container mx-auto flex flex-wrap p-5 flex-col md:flex-row items-center",
                     a { class: "flex title-font font-medium items-center text-white mb-4 md:mb-0",
                         StacksIcon {}