Basics
Dart Operators
Dart Operators
Dart operators include arithmetic and null-aware operators.
Introduction to Dart Operators
Dart operators are special symbols used to perform operations on operands. They are crucial in controlling the logic flow and data manipulation within a Dart application. In this guide, we'll explore some of the most commonly used operators, including arithmetic and null-aware operators.
Arithmetic Operators
Arithmetic operators are used to perform basic mathematical operations. Here are the primary arithmetic operators in Dart:
- +: Addition
- -: Subtraction
- *: Multiplication
- /: Division
- ~/: Integer Division
- %: Modulus (remainder)
Null-Aware Operators
Null-aware operators are particularly useful in Dart due to its strong null safety features. They help in handling null values gracefully without throwing exceptions. The primary null-aware operators include:
- ??: Provides a default value if the first operand is null.
- ??=: Assigns a value only if the variable is null.
- ?.: Calls a method or accesses a property only if the operand is not null.
Conclusion
Understanding Dart operators is essential for writing efficient and effective Dart code. Arithmetic operators allow for mathematical calculations, while null-aware operators provide a safe way to handle null values in your application. Mastery of these operators will enhance your ability to write robust Dart programs.
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