override class fields
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โฉ โฉ โฉ โฉ override class fields
โญ๏ธ class fields initialization๏ผ
The class fields are initialized:
base class: before constructor()
derived class: immediately after ()
๐ ๅ้ฑ๏ผ derived class init ็ๅฎๆด็ใๅๅงๅใ้็จใ
JS.info โฉ โญ๏ธ
derived class fields are initialized immediately after .