What is a Dart map?

Dart Map is an object that stores data in the form of a key-value pair . Each value is associated with its key, and it is used to access its corresponding value. Both keys and values can be any type. In Dart Map, each key must be unique, but the same value can occur multiple times.

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What is the use of operator in flutter?

An operator is a special symbol that is used to carry out some specific operation on its operand . In Dart, we have a rich set of built-in operators to carry out the different types of operations. There are operators for assignment, arithmetic operations, logical operations, and comparison operations, etc.

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What is or operator in Dart?

An operator is a symbol that is used to manipulating the values or performs operations on its operand . The given expression: 5+4, in this expression, 5 and 4 are operands and “+” is the operator. Dart provides an extensive set of built-in operators to accomplish various types of operations.

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