# 
[](https://github.com/mhanberg/temple/actions)
[](https://hex.pm/packages/temple)
> You are looking at the README for the main branch. The README for the latest stable release is located [here](https://github.com/mhanberg/temple/tree/v0.9.0).
Temple is an Elixir DSL for writing HTML.
## Installation
Add `temple` to your list of dependencies in `mix.exs`:
```elixir
def deps do
[
{:temple, "~> 0.9.0-rc.0"}
]
end
```
## Goals
Currently Temple has the following things on which it won't compromise.
- Will only work with valid Elixir syntax.
- Should work in all web environments such as Plug, Aino, Phoenix, and Phoenix LiveView.
## Usage
Using Temple is as simple as using the DSL inside of an `temple/1` block. The runtime result of the macro is your HTML.
See the [guides](https://hexdocs.pm/temple/your-first-template.html) for more details.
```elixir
import Temple
temple do
h2 do: "todos"
ul class: "list" do
for item <- @items do
li class: "item" do
div class: "checkbox" do
div class: "bullet hidden"
end
div do: item
end
end
end
script do: """
function toggleCheck({currentTarget}) {
currentTarget.children[0].children[0].classList.toggle("hidden");
}
let items = document.querySelectorAll("li");
Array.from(items).forEach(checkbox => checkbox.addEventListener("click", toggleCheck));
"""
end
```
### Components
Temple components are simple to write and easy to use.
Unlike normal partials, Temple components have the concept of "slots", which are similar [Vue](https://v3.vuejs.org/guide/component-slots.html#named-slots). You can also refer to HEEx and Surface for examples of templates that have the "slot" concept.
Please see the [guides](https://hexdocs.pm/temple/components.html) for more details.
```elixir
defmodule MyAppWeb.Component do
import Temple
def card(assigns) do
temple do
section do
div do
slot :header
end
div do
slot :default
end
div do
slot :footer
end
end
end
end
end
```
Using components is as simple as passing a reference to your component function to the `c` keyword.
```elixir
import MyAppWeb.Component
c &card/1 do
slot :header do
@user.full_name
end
@user.bio
slot :footer do
a href: "https://twitter.com/#{@user.twitter}" do
"@#{@user.twitter}"
end
a href: "https://github.com/#{@user.github}" do
"@#{@user.github}"
end
end
end
```
### Engine
By default, Temple will use the `EEx.SmartEngine` that is built into the Elixir standard library. If you are a web framework that uses it's own template engine (such as [Aino](https://github.com/oestrich/aino) and Phoenix/LiveView, you can configure Temple to it!
```elixir
# config/config.exs
config :temple,
engine: Aino.View.Engine # or Phoenix.HTML.Engine or Phoenix.LiveView.Engine
```
### Formatter
To include Temple's formatter configuration, add `:temple` to your `.formatter.exs`.
```elixir
[
import_deps: [:temple],
inputs: ["*.{ex,exs}", "priv/*/seeds.exs", "{config,lib,test}/**/*.{ex,exs,lexs}"],
]
```
## Phoenix
To use with [Phoenix](https://github.com/phoenixframework/phoenix), please use the [temple_phoenix](https://github.com/mhanberg/temple_phoenix) package! This bundles up some useful helpers as well as the Phoenix Template engine.
## Related
- [Introducing Temple: An elegant HTML library for Elixir and Phoenix](https://www.mitchellhanberg.com/introducing-temple-an-elegant-html-library-for-elixir-and-phoenix/)
- [Temple, AST, and Protocols](https://www.mitchellhanberg.com/temple-ast-and-protocols/)
- [Thinking Elixir Episode 92: Temple with Mitchell Hanberg](https://podcast.thinkingelixir.com/92)
- [How EEx Turns Your Template Into HTML](https://www.mitchellhanberg.com/how-eex-turns-your-template-into-html/)
