摘要:
subclass: subclass is a class that extends another class. 即子类。 In ES2015, to use 'this' in subclasses, we first must call super(). Why 'this' can not 阅读全文
posted @ 2018-10-23 16:14 lee_xiumei 阅读(180) 评论(0) 推荐(0)
摘要:
subclass: subclass is a class that extends another class. 即子类。 In ES2015, to use 'this' in subclasses, we first must call super(). Why 'this' can not 阅读全文
posted @ 2018-10-23 16:14 lee_xiumei 阅读(180) 评论(0) 推荐(0) |
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