dreamable/RailsNotes/5
表单: RailsNotes
用户: dreamable
创建日期: 2020-11-13 00:16:14 UTC
更新日期: 2020-11-13 01:00:13 UTC
引用:(Table ID 3, Record ID 5)
标题 :
Array & Hash
笔记 :
  • Hash with specified keys
    h.slice(:key1,:key2)
    h.slice(*[:key1,:key2])
  • Hash: convert key to symbols
    h.symbolize_keys
标签:

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