[英]What are good ways of passing an array or hash in client side javascript to server side ruby?
主要标准是易于操作和便携。
JSON将是我的选择,易于在javascript中生成,并且很容易直接解析为Ruby中的哈希。
Ruby(irb会话):
>> require 'json'
=> true
>> {:name => 'Chris Cherry', :emails => ['test1@test.com', 'test2@test.com']}.to_json
=> "{"emails":["test1@test.com","test2@test.com"],"name":"Chris Cherry"}"
>> json_string = _
=> "{"emails":["test1@test.com","test2@test.com"],"name":"Chris Cherry"}"
>> JSON.parse(json_string)
=> {"name"=>"Chris Cherry", "emails"=>["test1@test.com", "test2@test.com"]}
由于您使用的是rails,因此可以利用ActiveSupport支持JSON的优势。
ruby-1.9.2-p136 :003 > j = ActiveSupport::JSON
=> ActiveSupport::JSON
ruby-1.9.2-p136 :004 > j.encode({:team => "Celtics", :players => "20"})
=> "{\"team\":\"Celtics\",\"players\":\"20\"}"
ruby-1.9.2-p136 :005 > j.decode("{\"team\":\"Celtics\",\"players\":\"20\"}")
=> {"team"=>"Celtics", "players"=>"20"}
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