Echo JS 0.11.0

React 15.3.0 release - with PureComponent

at github.com

8 up and 1 down, posted by radubrehar 3066 days ago 6 comments

davidspiess 3065 days ago. link 1 point ▲ ▼

Be advised, in many cases a pure component with shouldComponentUpdate() implemented, can be slower than rerendering it.
Only use it after recognizing a performance bottleneck when profiling your application.

Replies

gcanti 3065 days ago. link 1 point ▲ ▼

> in many cases

Could you please show / link to some examples?

davidspiess 3065 days ago. link 2 points ▲ ▼

https://twitter.com/dan_abramov/status/759383530120110080

gcanti 3062 days ago. link 1 point ▲ ▼

So, for example when you know that statistically SCU most often returns false, thanks for the link.

davidspiess 3060 days ago. link 2 points ▲ ▼

The following article expands on this and shows how to profile correctly http://jamesknelson.com/should-i-use-shouldcomponentupdate/