index.html

---
layout: default
title: "Index"
css: index
regenerate: true
---
<div class="bg-erlang-grey">
    <div class="container banner px-0 px-md-2">
        <div class="slogan text-center">
            <h4 class="px-4 pt-4 text-light">
                Practical functional programming<br /> for a parallel world
            </h4>
            <!-- <h4 class="px-4 pt-4 text-light">
                        Build massively scalable soft real-time systems
                    </h4> -->
        </div>
        <div class="download text-center">
            <!-- We hide the download button on small screens as most likely it is a mobile
                 and no one want to workload Erlang on a mobile -->
            <div class="btn-group">
                {% assign majorReleases = site.releases | reverse | first %}
                <a href="{{ '/downloads' | relative_url }}"
                    class="btn btn-success d-inline-flex align-items-center gap-1">
                    Get Erlang/OTP {{ majorReleases.release }}
                    {% include svg-symbol.html symbol="download" width="20" height="20" %}
                </a>
            </div>
        </div>
        <!-- We have two different examples that are shown
             depending on the size of the viewport -->
        <div class="example">
            {% assign sizes = "large,small" | split: "," %}
            {% for size in sizes %}
            <div class="{{ size }}">
                <div id="{{ size }}-example-carousel" class="h-100 carousel slide" data-bs-ride="carousel">
                    <div class="carousel-inner h-100">
                        {% assign active="active" %}
                        {% for example in site.examples %}
                        {% if example.display == nil or example.display == size %}
                        <div class="h-100 carousel-item {{ active }}" data-bs-interval="10000">
                            <div class="h-100 d-flex flex-column">
                                <div class="flex-grow-1 mx-auto">
                                    {{ example.content | markdownify }}
                                </div>
                                <div class="text-light text-center">
                                    <p>{{ example.description }}</p>
                                </div>
                            </div>
                        </div>
                        {% assign active = "" %}
                        {% endif %}
                        {% endfor %}
                    </div>
                    <button class="carousel-control-prev" type="button" data-bs-target="#{{ size }}-example-carousel"
                        data-bs-slide="prev">
                        <span class="carousel-control-prev-icon" aria-hidden="true"></span>
                        <span class="visually-hidden">Previous</span>
                    </button>
                    <button class="carousel-control-next" type="button" data-bs-target="#{{ size }}-example-carousel"
                        data-bs-slide="next">
                        <span class="carousel-control-next-icon" aria-hidden="true"></span>
                        <span class="visually-hidden">Next</span>
                    </button>
                </div>
            </div>
            {% endfor %}

        </div>
    </div>
</div>
<main class="content container">
    <div class="what-is-erlang">
        <h4>What is Erlang?</h4>
        <p class="ps-3">Erlang is a programming language used to build massively scalable soft real-time
            systems with requirements on high availability. Some of its uses are in telecoms, banking,
            e-commerce, computer telephony and instant messaging. Erlang's runtime system has built-in
            support for concurrency, distribution and fault tolerance.</p>
        <a href="{{ '/doc/getting_started/intro.html' | relative_url }}" role="button"
            class="btn btn-primary float-end d-inline-flex align-items-center">
            Erlang Quickstart
            {% include svg-symbol.html symbol="arrow-right" width="24" height="24" %}
        </a>
    </div>
    <div class="what-is-otp">
        <h4>What is OTP?</h4>
        <p class="ps-3">OTP is set of Erlang libraries and design principles providing middle-ware to
            develop these systems. It includes its own distributed database, applications to interface
            towards other languages, debugging and release handling tools.</p>
        <a href="{{ '/doc/design_principles/des_princ.html' | relative_url }}" role="button"
            class="btn btn-primary float-end d-inline-flex align-items-center">
            Getting Started with OTP
            {% include svg-symbol.html symbol="arrow-right" width="24" height="24" %}
        </a>
    </div>
    <div class="news">
        <h4>News</h4>
        <dl class="ps-3">
            {% assign all_news = site.news | concat: site.posts | sort: "date" | reverse %}
            {% for news in all_news limit:3 %}
            <dt>
                <h5><a href="{{ news.url | relative_url }}">{{ news.title }}</a></h5>
                <small class="ps-2">{{ news.date | date: "%B %d, %Y" }} by {{ news.author }}</small>
            </dt>
            <dd class="px-3 py-1">
                {{ news.lead | default: news.excerpt | strip_html | truncate: 250 }}
            </dd>
            {% endfor %}
        </dl>
    </div>
    <div class="participate">
        <h4>Participate</h4>
        <p class="ps-3">
            <a href="https://erlef.org"><img alt="Join the Erlang Ecosystem Foundation"
                    src="{{ '/assets/img/eef.png' | relative_url }}" class="img-fluid" width="174"></a>
        </p>
    </div>
</main>
<script src="{{'/assets/js/prismjs/prism.js' | prepend: site.baseurl }}"></script>
<script src="{{'/assets/js/prismjs/components/prism-erlang.js' | prepend: site.baseurl }}"></script>