Category: 11. Dart

Dart is an open-source general-purpose programming language. It is originally developed by Google and later approved as a standard by ECMA. Dart is a new programming language meant for the server as well as the browser. Introduced by Google, the Dart SDK ships with its compiler – the Dart VM. The SDK also includes a utility -dart2js, a transpiler…

The following resources contain additional information on Dart Programming. Please use them to get more in-depth knowledge on this topic. Useful Video Courses Dart Course for Beginners 45 Lectures  4.5 hours  Sriyank Siddhartha More Detail Flutter With Dart: Course For Beginners 35 Lectures  4 hours  Sriyank Siddhartha More Detail COMPLETE Google DART Programming- BOOTCAMP 23 Lectures  1.5 hours…

Every webpage resides inside a browser window which can be considered as an object. A Document object represents the HTML document that is displayed in that window. The Document object has various properties that refer to other objects which allow access to and modification of document content. The way a document content is accessed and modified is…

Unit Testing involves testing every individual unit of an application. It helps the developer to test small functionalities without running the entire complex application. The Dart external library named “test” provides a standard way of writing and running unit tests. Dart unit testing involves the following steps − Step 1: Installing the “test” package To installing third-party…

Concurrency is the execution of several instruction sequences at the same time. It involves performing more than one task simultaneously. Dart uses Isolates as a tool for doing works in parallel. The dart:isolate package is Dart’s solution to taking single-threaded Dart code and allowing the application to make greater use of the hard-ware available. Isolates, as the name suggests, are…

An asynchronous operation executes in a thread, separate from the main application thread. When an application calls a method to perform an operation asynchronously, the application can continue executing while the asynchronous method performs its task. Example Let’s take an example to understand this concept. Here, the program accepts user input using the IO library. Live Demo The readLineSync() is a synchronous…

A library in a programming language represents a collection of routines (set of programming instructions). Dart has a set of built-in libraries that are useful to store routines that are frequently used. A Dart library comprises of a set of classes, constants, functions, typedefs, properties, and exceptions. Importing a library Importing makes the components in…

A typedef, or a function-type alias, helps to define pointers to executable code within memory. Simply put, a typedef can be used as a pointer that references a function. Given below are the steps to implement typedefs in a Dart program. Step 1: Defining a typedef A typedef can be used to specify a function signature that we want specific functions to…

Every now and then, developers commit mistakes while coding. A mistake in a program is referred to as a bug. The process of finding and fixing bugs is called debugging and is a normal part of the development process. This section covers tools and techniques that can help you with debugging tasks. The WebStorm editor…

An exception (or exceptional event) is a problem that arises during the execution of a program. When an Exception occurs the normal flow of the program is disrupted and the program/Application terminates abnormally. Built-in Dart exceptions include − Sr.No Exceptions & Description 1 DeferredLoadExceptionThrown when a deferred library fails to load. 2 FormatExceptionException thrown when…