EJS:将变量传递到包含的文件 [英] EJS: pass a variable to the included file

问题描述

我将EJS用作前端开发堆栈的一部分.例如我正常的index.ejs看起来像这样:

I'm using EJS as a part of my front-end dev stack. For example my normal index.ejs looks like that:

<%- include parts/header.ejs %>

  <%- include parts/navigation.ejs %>
    
    <!-- HTML content: divs, spans, etc. -->
  
<%- include parts/footer.ejs %>

我想通过某种方式将包含<％-include parts/footer.ejs的变量传递给 variable = value ％>，并希望有条件地在包含的文件中读取它显示/隐藏内容的某些部分.

What I want is to pass somehow a variable with the include <%- include parts/footer.ejs?variable=value %> and want to read it in the included file, to conditionally show/hide some parts of the content.

我找不到解决办法.EJS有可能吗?

I can't find the way to do it. Is it possible with EJS?

推荐答案

执行此操作的两种方法:

Two ways to do this:

这种方式与EJS 1.0兼容，并且具有编译时的优势.

This way is compatible with EJS 1.0, and has the advantage of being compile-time.

只需在 include 之前声明变量.

示例:

included.ejs:

included.ejs:

<p><%= variable %></p>

main.ejs:

<% var variable = 'hola' %>
<% include included %>

智能方式

此方法仅适用于EJS 2.0或更高版本，但可能比上一种方法稍慢(如果未启用缓存，则可能慢很多):

Smart Way

This method is only available with EJS 2.0 or newer, but might be marginally slower (or a lot slower if caching is not enabled) than the last method:

included.ejs:

included.ejs:

<p><%= variable %></p>

main.ejs:

<%- include('included', {variable: 'hola'}) %>

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