Language Tour | Dart

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[igtm]

“Sometimes you don’t care about maintaining order, but you do care about ensuring there is one and only one item in a collection. In contrast to lists and queue, which are ordered and allow duplicate items, a Set is unordered and does not allow any duplicate items.”

[Kureduki_Maari]

.｡oO( #Dart のconstructorに引数で、ClassName(this.param1, this.param2) て書くと、instance変数に突っ込んでくれるsyntax sugarは素敵だったは