rails 前后端数据传递hash to json

controller.rb

?

1	@data = {a: 1, b: 2}<br>@data_new = {"a": 1, "b": 2}

index.html

?

1 2 3 4 5 6

var arr = <%= @data %> #=> {:a =>1, :b =>2}   var arr = <%= raw @data %> #=> arr = {:a => 1, :b => 2}<br><br>var arr = <%= raw @data_new %> #=> arr = {:a => 1, :b => 2}<br><br>### 使用 gem “activesupport”   stringify_keys<br><br>var arr = <%= raw @data_new.stringify_keys %> <br>#=> arr = {"a" => 1, "b" => 2}<br><br>var arr = <%= raw @data_new.stringify_keys.to_json %> <br>#=> arr = {"a": 1, "b": 2}<br><br><br>