Hubspot | getQueryParam() | Passing classes to menu item from Dashboard

get-query-param.html

{# Helpers: getQueryParam #}
{# Returns the query value by handle #}

{# Parameters #}
{# url | URL | Required #}
{# parameter | Parameter name | Required #}

{# How to import this macro to my module #}
{# {% from 'NOW_002_Website/helpers/get-query-param.html' import getQueryParam %} #}

{# How to use this macro #}
{# {{ getQueryParam('http://www.honestfox.com.au?class=custom', 'class') }} #}

{# How to check if value is returned by macro #}
{# if (getQueryParam('http://www.honestfox.com.au?class=custom', 'class') != '') {} #}

{%- macro getQueryParam(url, handle) -%}
  {%- set urlParts = url | split('?') -%}

  {%- if urlParts | length > 0 -%}
    {%- set urlParams = urlParts | last | split('&') -%}
    {%- if urlParams | length == 0 -%}
      {%- set urlParams = [urlParams] -%}
    {%- endif -%}

    {%- for param in urlParams -%}
      {%- if param is string_containing handle ~ '=' -%}
        {{ param | split('=') | last }}
      {%- endif -%}
    {%- endfor -%}
  {%- endif -%}
{%- endmacro -%}

site-header.html

{% from [filepath] import getQueryParam %}

{# check if has '?class' query param to add special classes for styling #}
{% set childClass = getQueryParam(child.url, 'class') %}

<li class="{{ childClass }}">
  {# regex is to remove '?class=' from url #}
  <a href="{{ child.url | regex_replace('class=' ~ childClass, '') | regex_replace('[?]', '') }}" 
     target="{{ child.linkTarget }}"
  >
    {{ child.label }}
  </a>
</li>