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Update docs to reflect changes in master (#670)

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* work on updating docs to master version

* more updates

* more polishing

* finish interactivity chapter

* finish updating core guide

* fix grammer mistakes and typos

* more grammer fixes

* add liveview guide

* remove doc build

* WIP custom renderer docs

* add axum as dev-dependancy to guide

* fix examples

* fix overview example

* use md book fork to fix compilation
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docs/guide/src/en/describing_ui/index.md
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# Describing the UI
Dioxus is a *declarative* framework. This means that instead of telling Dioxus what to do (e.g. to "create an element" or "set color to red") we simply *declare* what we want the UI to look like using RSX.
Dioxus is a *declarative* framework. This means that instead of telling Dioxus what to do (e.g. to "create an element" or "set the color to red") we simply *declare* what we want the UI to look like using RSX.
You have already seen a simple example or RSX syntax in the "hello world" application:
You have already seen a simple example of RSX syntax in the "hello world" application:
```rust
{{#include ../../../examples/hello_world_desktop.rs:component}}
@@ -21,9 +21,51 @@ RSX is very similar to HTML in that it describes elements with attributes and ch
<div></div>
```
### Attributes
Attributes (and [listeners](../interactivity/index.md)) modify the behavior or appearance of the element they are attached to. They are specified inside the `{}` brackets, using the `name: value` syntax. You can provide the value as a literal in the RSX:
```rust
{{#include ../../../examples/rsx_overview.rs:attributes}}
```
```html
<a href="https://www.youtube.com/watch?v=dQw4w9WgXcQ" class="primary_button" autofocus="true" style="color: red"></a>
```
> Note: All attributes defined in `dioxus-html` follow the snake_case naming convention. They transform their `snake_case` names to HTML's `camelCase` attributes.
> Note: Styles can be used directly outside of the `style:` attribute. In the above example, `color: "red"` is turned into `style="color: red"`.
#### Custom Attributes
Dioxus has a pre-configured set of attributes that you can use. RSX is validated at compile time to make sure you didn't specify an invalid attribute. If you want to override this behavior with a custom attribute name, specify the attribute in quotes:
```rust
{{#include ../../../examples/rsx_overview.rs:custom_attributes}}
```
```html
<b customAttribute="value">
</b>
```
### Interpolation
Similarly to how you can [format](https://doc.rust-lang.org/rust-by-example/hello/print/fmt.html) Rust strings, you can also interpolate in RSX text. Use `{variable}` to Display the value of a variable in a string, or `{variable:?}` to use the Debug representation:
```rust
{{#include ../../../examples/rsx_overview.rs:formatting}}
```
```html
<div class="country-es" position="(42, 0)">
<div>ES</div>
<div>42</div>
<div>{}</div>
</div>
```
### Children
To add children to an element, put them inside the `{}` brackets. They can be either other elements, or text. For example, you could have an `ol` (ordered list) element, containing 3 `li` (list item) elements, each of which contains some text:
To add children to an element, put them inside the `{}` brackets after all attributes and listeners in the element. They can be other elements, text, or [components](components.md). For example, you could have an `ol` (ordered list) element, containing 3 `li` (list item) elements, each of which contains some text:
```rust
{{#include ../../../examples/rsx_overview.rs:children}}
@@ -38,69 +80,51 @@ To add children to an element, put them inside the `{}` brackets. They can be ei
### Fragments
You can also "group" elements by wrapping them in `Fragment {}`. This will not create any additional elements.
> Note: you can also render multiple elements at the top level of `rsx!` and they will be automatically grouped – no need for an explicit `Fragment {}` there.
You can render multiple elements at the top level of `rsx!` and they will be automatically grouped.
```rust
{{#include ../../../examples/rsx_overview.rs:fragments}}
{{#include ../../../examples/rsx_overview.rs:manyroots}}
```
```html
<p>First Item</p>
<p>Second Item</p>
<span>a group</span>
<span>of three</span>
<span>items</span>
```
### Attributes
Attributes are also specified inside the `{}` brackets, using the `name: value` syntax. You can provide the value as a literal in the RSX:
```rust
{{#include ../../../examples/rsx_overview.rs:attributes}}
```
```html
<a href="https://www.youtube.com/watch?v=dQw4w9WgXcQ" class="primary_button" autofocus="true">Log In</a>
```
> Note: All attributes defined in `dioxus-html` follow the snake_case naming convention. They transform their `snake_case` names to HTML's `camelCase` attributes.
#### Custom Attributes
Dioxus has a pre-configured set of attributes that you can use. RSX is validated at compile time to make sure you didn't specify an invalid attribute. If you want to override this behavior with a custom attribute name, specify the attribute in quotes:
```rust
{{#include ../../../examples/rsx_overview.rs:custom_attributes}}
```
```html
<b customAttribute="value">
Rust is cool
</b>
```
### Interpolation
Similarly to how you can [format](https://doc.rust-lang.org/rust-by-example/hello/print/fmt.html) Rust strings, you can also interpolate in RSX text. Use `{variable}` to Display the value of a variable in a string, or `{variable:?}` to use the Debug representation:
```rust
{{#include ../../../examples/rsx_overview.rs:formatting}}
```
```html
<div class="country-es">Coordinates: (42, 0)
<div>ES</div>
<div>42</div>
</div>
```
### Expressions
You can include arbitrary Rust expressions within RSX, but you must escape them in `[]` brackets:
You can include arbitrary Rust expressions as children within RSX that implements [IntoDynNode](https://docs.rs/dioxus-core/0.3/dioxus_core/trait.IntoDynNode.html). This is useful for displaying data from an [iterator](https://doc.rust-lang.org/stable/book/ch13-02-iterators.html#processing-a-series-of-items-with-iterators):
```rust
{{#include ../../../examples/rsx_overview.rs:expression}}
```
```html
<span>DIOXUS</span>
<span>DIOXUS0123456789</span>
```
### Loops
In addition to iterators you can also use for loops directly within RSX:
```rust
{{#include ../../../examples/rsx_overview.rs:loops}}
```
```html
<div>0</div>
<div>1</div>
<div>2</div>
<div>0</div>
<div>1</div>
<div>2</div>
```
### If statements
You can also use if statements without an else branch within RSX:
```rust
{{#include ../../../examples/rsx_overview.rs:ifstatements}}
```
```html
<div>true</div>
```