Class Fields
https://github.com/tc39/proposal-class-fields
Slide 9
Slide 9 text
Private Class Fields
https://github.com/tc39/proposal-class-fields#private-fields
Slide 10
Slide 10 text
ࢀߟ
Private Class Field ͷಋೖʹ͏ JS ͷߏจ֦ு
https://blog.jxck.io/entries/2019-03-14/private-class-
field.html
ES Class FieldsͷϓϥΠϕʔτϑΟʔϧυ͕ϋογϡͳมଶه๏ͳͷԿͰͳ
Μͩͥʁ
https://gist.github.com/teppeis/
06c2b7e97c7d67684c3d3c94159893f3