angular-docs-cn/aio/tools/transforms/templates/api/includes/pipe-overview.html

{% import "lib/memberHelpers.html" as memberHelpers -%}
{% import "lib/paramList.html" as params -%}

<section class="{$ doc.docType $}-overview">
  <code-example hideCopy="true" class="no-box api-heading">{{ {$ doc.valueParam.name $}_expression | <span class="kwd nocode">{$ doc.pipeName $}</span>
    {%- for param in doc.pipeParams %}
      {%- if param.isOptional or param.defaultValue !== undefined %} [{% endif %} : {$ param.name $}
    {%- endfor %}
    {%- for param in doc.pipeParams %}
      {%- if param.isOptional or param.defaultValue !== undefined %} ]{% endif %}
    {%- endfor %} }}</code-example>

  {% if doc.valueParam.type %}
  <h2>Input value</h2>
  {$ params.renderParameters([doc.valueParam], 'pipe-parameters', 'pipe-parameter', true) $}
  {% endif %}
  {% if doc.pipeParams.length %}
  <h2>Parameters</h2>
  {$ params.renderParameters(doc.pipeParams, 'pipe-parameters', 'pipe-parameter', true) $}
  {% endif %}
</section>