nav-version-switcher.html

<!-- only displayed in mobile; be sure to update version-switcher.html too -->
<div class="version-switcher">
    <a href="{{ '/versions/' | url }}" class="switcher-fallback">Versions</a>

    <div hidden role="region" class="switcher switcher--version" aria-labelledby="nav-version-switcher-label" id="nav-version-switcher">
        <span id="nav-version-switcher-label" hidden>Version Switcher</span>
        <div class="infobox visually-hidden" id="nav-version-infobox">
            Selecting a version will take you to the chosen version of the ESLint docs.
        </div>

        <label class="switcher__label label--block" for="version-select">
            <span class="label__text">Version</span>
        </label>
        <select name="version selector" id="nav-version-select" aria-describedby="nav-version-infobox" class="c-custom-select switcher__select auto-switcher">
            <option value="HEAD" data-url="/docs/head/" {% if HEAD %}selected{% endif %}>HEAD</option>
            {% if config.showNextVersion == true %}
                <option value="NEXT" data-url="/docs/next/" {% if GIT_BRANCH == "next" %}selected{% endif %}>NEXT</option>
            {% endif %}
            <option value="NEXT" data-url="/docs/next/" {% if GIT_BRANCH == "next" %}selected{% endif %}>NEXT</option>
            <option value="{{ eslintVersion }}" data-url="/docs/latest/" {% if GIT_BRANCH == "latest" %}selected{% endif %}>v{{ eslintVersion }}</option>
            {% for version in versions.items %}
            <option value="{{ version.number }}"
                    data-url="{{ version.url }}">
                v{{ version.number }}
            </option>
            {% endfor %}
        </select>
    </div>
</div>