如何在键来自页面本身的视图中呈现哈希值？

Question

More detailed question: How do I render a hash in a view, where the hash is passed from the controller but the key comes from the page via Javascript?

I know I can do something like this <%= hash["key"] %> , but in my case "key" is coming from another hash element generated on my page with JS, call it js_hash.js_key.

I've tried the following to no avail

<%= raw hash %>[js_hash.js_key]

<%= raw hash %>[js_hash["js_key"]]

Answer 1

以下工作（单引号很重要）：

var some_js_var = JSON.parse('<%= the_hash.to_json.html_safe %>'); console.log(some_js_var[js_hash.js_key]);