Dart SDK
dart:collection
SplayTreeMap
firstKey
method
firstKey
SplayTreeMap
Properties
isEmpty
isNotEmpty
length
keys
values
Constructors
SplayTreeMap
from
fromIterable
fromIterables
Operators
operator []
operator []=
Methods
remove
putIfAbsent
addAll
forEach
clear
containsKey
containsValue
toString
firstKey
lastKey
lastKeyBefore
firstKeyAfter
K
firstKey
( )
Get the first key in the map. Returns
null
if the map is empty.