如何在node.js ejs模板中将变量从后端传递到前端 [英] How to pass variable from back-end to front-end in node.js ejs template

问题描述

我这样渲染我的页面:

response.render('index', {
    data: list // the `list` is an array variable
});

在首页中，我想将 data 存储为Globe变量，所以我尝试了:

And in the front page, I want store the data as globe variable, so I tried:

<script>
   window.app = <%= data %>
</script>

但结果是:

window.app = [object Object],[object Object],[object Object]

那我该怎么做呢?

推荐答案

您可以将数据字符串化为JSON，它是javascript的子集，将被解析为确切的数据结构.还要使用<％-表达式％> 来确保您的JavaScript不会被转义.

You can stringify the data as JSON, which is a subset of javascript, and will be parsed as the exact data structure. Also use <%- expression %> to make sure your javascript won't be escaped.

<script>
   window.app = <%- JSON.stringify(data) %>
</script>

请注意，这将不包含函数，并且会抛出循环数据结构.但是类似 [{{a:{b:3}}] 之类的东西应该可以正常工作.日期也将转换为字符串.

Note that this won't include functions and it will throw on cyclic data structures. But stuff like [{ a : { b : 3 }}] should work fine. Dates are also converted to strings.

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