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Data Types in Dart
The data types are the most important fundamental features of programing language. In Dart, the data type of the variable is defined by its value. The variables are used to store values and reserve the memory location.
⌖ dart programming flutter data-typesDart Variables
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.
⌖ dart programming flutter variablesDart Operators
An operator is a symbol that is used for manipulating the values or performs operations on its operands. The given expression: 1+4, in this expression, 1 and 4 are operands and '+' is the operator. Dart programming language provides an extensive set of built-in operators to accomplish various types of operations. Operators can be unary or binary, which means unary take only on operand and binary take two operands along with operators.
⌖ dart programming flutter operatorsDart Packages
Dart package is the collection of a well-organized, independent, and reusable code unit. Applications might be needed to implement third-party libraries or packages. The package generally contains a set of classes, functions, or unit of code for specific tasks along with the compiled program and sample data.
⌖ dart programming flutter packagesDart Libraries
In Dart, the library is the collection of the routine or set of programming instructions. Dart consists of many sets of built-in libraries that are beneficial to hold routines (functions, set of classes, etc.), and regularly used. A Dart library contains constants, functions, properties, exceptions, and typedefs, and set of classes.
⌖ dart programming flutter libraries