The exit() method exits the current program by terminating running Dart VM. This method takes a status code. A non-zero value of status code is generally used to indicate abnormal termination. This is a similar exit in C/C++, Java. This method doesn’t wait for any asynchronous operations to terminate. Syntax: exit(exit_code); To use this method, we have… Continue reading How to Exit a Dart Application Unconditionally?
Category: Dart
Splitting of String
In Dart splitting of a string can be done with the help split string function in the dart. It is a built-in function use to split the string into substring across a common character. Syntax: string_name.split(pattern) This function splits the string into substring across the given pattern and then store them to a list. Example1: Splitting… Continue reading Splitting of String
Dart Classes and Object
Dart classes are the blueprint of the object, or it can be called object constructors. A class can contain fields, functions, constructors, etc. It is a wrapper that binds/encapsulates the data and functions together; that can be accessed by creating an object. A class can refer to as user-define data type which defines characteristics by… Continue reading Dart Classes and Object
How to Combine Lists in Dart?
In Dart programming, the List data type is similar to arrays in other programming languages. A list is used to represent a collection of objects. It is an ordered group of objects. The core libraries in Dart are responsible for the existence of List class, its creation, and manipulation. These are some ways to combine… Continue reading How to Combine Lists in Dart?
Dart Function
Dart function is a set of codes that together perform a specific task. It is used to break the large code into smaller modules and reuse it when needed. Functions make the program more readable and easy to debug. It improves the modular approach and enhances the code reusability. Suppose, we write a simple calculator… Continue reading Dart Function
Dart Switch Case Statement
Dart Switch case statement is used to avoid the long chain of the if-else statement. It is the simplified form of nested if-else statement. The value of the variable compares with the multiple cases, and if a match is found, then it executes a block of statement associated with that particular case. The assigned value… Continue reading Dart Switch Case Statement
Dart Boolean
Dart Boolean data type is used to check whether a given statement true or false. The true and false are the two values of the Boolean type, which are both compile-time constants. In Dart, The numeric value 1 or 0 cannot be used to specify the true or false. The bool keyword is used to represent the Boolean value. The syntax of declaring the Boolean… Continue reading Dart Boolean
Dart Interfaces
An interface defines the syntax that any entity must adhere to. Dart does not have any separate syntax to define interfaces. An Interface defines the same as the class where any set of methods can be accessed by an object. The Class declaration can interface itself. The keyword implement is needed to be writing, followed… Continue reading Dart Interfaces
Using super keyword with constructor
We can use the super keyword to access the parent class constructor. The super keyword can call both parameterized and non-parameterized constructors depending on the situation. The syntax is given below. Syntax: :super(); Example – // Base class called Parent class Parent { Parent() { print(“This is the super class constructor”); } } // Child class Super class Child extends Parent { Child():super() // Calling super class constructor { print(“This is the sub class constructor”); } } void main() { // Creating object of sub class … Continue reading Using super keyword with constructor
Dart – Super keyword
In Dart, super keyword is used to refer immediate parent class object. It is used to call properties and methods of the superclass. It does not call the method, whereas when we create an instance of subclass than that of the parent class is created implicitly so super keyword calls that instance. Advantages of super keyword: It… Continue reading Dart – Super keyword