Javascript if语句的模板语法

我有一个关于模板语法和解析对象的快速问题。因此，我有一个对象，我想有条件地打印它，如下所示：

{'paragraph':'Some important text that you want printed.'},

 /**
  * Prints the text object specified.
  * @param textToPrint All of the items you want rendered on the page.
  */
 {template .printText}
    {foreach $textItem in textToPrint}
      {if $textItem[0] is 'paragraph'}          //THIS IS THE LINE IN QUESTION
         {call .paragraph}
            {param paragraph: $textItem[0] /}
         {/call}
      {else}
         {call .list}
            {param listItem: $textItem[0] /}
         {/call}
      {/if}
    {/foreach}
  </ul>
 {/template}

我想知道我怎样才能对“段落”的第一个论点进行检验。我希望根据该参数有条件地调用子模板。比如说

{'list':['item 1', 'item 2']}

我想尝试这样做：

{'paragraph':'Some important text that you want printed.'},

 /**
  * Prints the text object specified.
  * @param textToPrint All of the items you want rendered on the page.
  */
 {template .printText}
    {foreach $textItem in textToPrint}
      {if $textItem[0] is 'paragraph'}          //THIS IS THE LINE IN QUESTION
         {call .paragraph}
            {param paragraph: $textItem[0] /}
         {/call}
      {else}
         {call .list}
            {param listItem: $textItem[0] /}
         {/call}
      {/if}
    {/foreach}
  </ul>
 {/template}

/**
*打印指定的文本对象。
*@param textToPrint您希望在页面上呈现的所有项目。
*/
{template.printText}
{textToPrint中的foreach$textItem}
{如果$textItem[0]是“段落”}//这是有问题的行
{调用.段落}
{param段落：$textItem[0]/}
{/call}
{else}
{call.list}
{param listItem:$textItem[0]/}
{/call}
{/if}
{/foreach}

{/template}

---

有人知道这样做的语法吗？谢谢

好吧，我想应该是这样的：

{if $textItem  == 'paragraph'}