2018-1-30

• css filter: drop-shadow()
• sass draken()
• sass placeholder
• sass @include
• sass @content
• redux mapDispatchToProps dispatched function(bindActionCreator)
• react-router onEnter hook(20%)
• react-router IndexRoute IndexRedirect
• 高阶函数例子及定义

2018-2-13

• understand es7 function bind syntax in react
• review this in ecmascript

2018-2-17

• currentTarget <- represent registered element and equal to this in event handler
• target <- actual and real target in event
• understand function parameters transfer by value

2018-2-21

• scope chain and excution context environment
• reference counting strategy of garbage collection