191126_日報

取り組んだこと

• It's Dangerous to Go Alone: Battling the Invisible Monsters in Tech youtu.be
• Believe you can change Believe you can change (Aaron Swartz's Raw Thought)
• codewar
• Rails Tutorial Ch.4:

学んだこと

• “fixed mindset”

  • the belief that your abilities are fixed and that the world is just a series of tests that show you how good you are
  • success comes from proving how great you are.
  • feel smart when they don't make mistakes
  • try to blame the world when things go bad
  • be afraid to try hard

• "growth mindset"

  • the belief that everything come through effort and that the world is full of interesting challenges that can help you learn and grow
  • success comes from growing
  • feel smart when they struggle with something for a long time and then finally figure it out
  • look to see what they can change about themselves
  • be afraid of not trying

• this difference between these mindsets appear in all sorts of places - in relationships, CEO and even in sports.

• your mindset itself can be changed

  • the first step to getting better is believing you can get better

• Rubyでクラスメソッドの定義

  • self

• mapメソッド

  • ブロックの戻り値が新しい配列の各要素になる