What is final flutter?

“final” means single-assignment : a final variable or field must have an initializer. Once assigned a value, a final variable’s value cannot be changed. final modifies variables. “const” has a meaning that’s a bit more complex and subtle in Dart.

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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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