Dart - Spread Operator (...)

In Dart, Spread Operator (...) and Null-aware Spread Operator (...?) are used for inserting multiple elements in a collection like Lists, Maps, etc.

Syntaxes:

• Spread operator

...Data_structure

• Null-aware Spread operator

...?Data_structure

Example 1: Using spread operators with List.

Output :

[Wow, Geeks, For, Geeks, is, amazing]

Example 2: Using Spread operator with Map.

Output :

{roll no: 45, class: 12, name: John, age: 21}

Example 3: Using spread operator with Sets.

Output:

{5,4,3,2,1}