![Vandad Nahavandipoor on Twitter: "In #Flutter / #Dart, instead of doing a # map and then a #filter, use #compactMap 🥲 compactMap allows you to #return null in your map function, and #eliminates Vandad Nahavandipoor on Twitter: "In #Flutter / #Dart, instead of doing a # map and then a #filter, use #compactMap 🥲 compactMap allows you to #return null in your map function, and #eliminates](https://pbs.twimg.com/media/FFf6LRbXEAYFXp3.jpg)
Vandad Nahavandipoor on Twitter: "In #Flutter / #Dart, instead of doing a # map and then a #filter, use #compactMap 🥲 compactMap allows you to #return null in your map function, and #eliminates
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Iterators, Map, Filter, Reduce and list processing in Go (Golang) : implementing Python functional features. | by Serge Hulne | Medium
![The argument type 'void Function(Map<String, bool>)' can't be assigned to the parameter type 'Map<String, bool>' - Stack Overflow The argument type 'void Function(Map<String, bool>)' can't be assigned to the parameter type 'Map<String, bool>' - Stack Overflow](https://i.stack.imgur.com/ehf49.png)