There are certain cases where we want to return a value from a given function so that we can use it later. These return values make use of a return keyword which in turn allows a function to return values.It should be noted that the return statement is optional, if ... Read More

Relational operators are used in cases where we want to compare two operands. The result when we use a relational operator between two operands is always a Boolean value.There are different types of relational operators present in Dart. In the table shown below all the relational operators present in dart ... Read More

Dart provides us with a standard library named 'io' which contains different classes and in turn, these classes contains different methods that we can use to read or write input from the terminal.We import the library in our program by making use of the import command.ExampleConsider the example shown below ... Read More

A queue is a collection of objects. In Dart, we can do operations on both ends of the queue.A queue can be created by making use of the Queue class this present inside the collection library of dart.ExampleConsider the example shown below − Live Demoimport 'dart:collection'; void main() {    var ... Read More

Optional parameters are those parameters that don't need to be specified when calling the function. Optional parameters allow us to pass default values to parameters that we define. There are two types of optional parameters, mainly −Ordered (positional) optional parametersNamed optional parametersOrdered Optional ParametersOrdered optional parameters are those parameters that ... Read More

Dart has different null aware operators that we can use to make sure that we are not accessing the null values and to deal with them in a subtle way.Mainly, these are −?? operator??= operator? operatorWe will go through each of them in the following article.?? operatorThe ?? operator returns ... Read More

Maps are very important data structures as they allow us to map keys to some specific values, and later we can get the values from the keys.In Dart, we have different types of maps available to us. These mainly are −HashMapLinkedHashMapSplayTreeMapIn most cases, we make use of LinkedHashMap as it ... Read More

Arithmetic operators are used to perform different arithmetic operations.These arithmetic operations mainly are −AdditionSubtractionMultiplicationDivisionModulus, etc.Let's consider that we have two int variables named x and y, where x is storing the value 10 and y is storing the value 20.In the below table, you can see all the arithmetic operators, ... Read More

Inheritance in dart is defined as the process in which one class derive the properties and characteristics of another class. It is helpful as it provides an ability with which we can create a new class from an existing class.Inheritance is a major component of a programming paradigm known as ... Read More

We make use of assignment operators whenever we want to assign values to a variable. There are times when we combine assignment operators with arithmetic operators and logical operators to build a shorthand version of both the assignment and arithmetic (or logical) expression. These shorthand versions are also known as ... Read More