Dart Conditional expressions

The conditional operators covered here are distinct from conditional statements such as if-else. They refer to the ternary operator and null-coalescing operator.

Two Types of Conditional Operators

Dart Logical operators

Logical operators only operate on boolean values (true / false) to evaluate whether a condition holds true. They yield exactly two possible results: true (the condition is satisfied) and false (the condition fails).

Dart Type test operators

The check obj is T evaluates to true when the object obj implements or inherits type T — this includes parent classes, interfaces, and nullable variants of the target type.

Arithmetic operators

Basic Binary Arithmetic Operators These operators perform calculations between two numeric values, with a total of seven variants, covering standard four arithmetic operations, integer division, modulo, and unary negation operators. …

Operators

Dart supports all operators listed in the table below, sorted from highest to lowest precedence

Variables

Variables Let’s go over variables in Dart. Below is a sample showing how to create and initialize a variable: Variables hold references. The variable named name stores a reference pointing …

Hello World

In our last lesson, we walked through building your first Dart program. Now let’s create a Hello World example from scratch ourselves.