What is spread operator in Dart?

spread operator in Dart and how to use it. Since version 2.3, Dart adds a new operator called spread which uses three dots ( … ) notations. It can be used to extend the elements of a Collection . The examples below show the usage of the notation on List , Set , and Map .

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What is Dart variable?

Variable is used to store the value and refer the memory location in computer memory . When we create a variable, the Dart compiler allocates some space in memory. The size of the memory block of memory is depended upon the type of variable.

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