Dart is a prominent client-oriented programming language. Lars Bak and Kasper Lund created it. Google launched this language on October 10, 2011. This language is imperative and functional and is used for mobile and web development. It’s an object-oriented, class-based language that works on C-style syntax.
Dart allows engineers to fix bugs quickly. In addition, it focuses on code readability with features such as tabs, line breaks, and spaces, which further improve the visual representation of the code. Dart has all the object-oriented features you might expect from such a language, including inheritance, objects, and abstract classes
Dart has a null safety feature that helps in preventing application crashes. It ensures that any variable you define remains non-nullable until you change it. This allows engineers to handle runtime null-dereference errors before code execution. It also ensures that the nullability of the project is worked on during the editing phase. This process is called sound null safety.
Hiring Guide
There are several ways to run Dart code. Dart can be compiled as JavaScript, it can run as a standalone SDK, and it can be compiled Ahead of Time (AOT). You can also compile it natively through a self-contained executable code. Furthermore, it’s reflective, i.e., it can access its own structure and modify it based on its assessment. This results in easy error identification and rectification.
Dart has a great online community that provides easy access to databases and libraries. The community also supports the DartPad tool, an aid for beginner Dart engineers to practice the language. In addition, there are numerous tutorials available online, and Dart also has in-built tools for easy application development.
Relevance of Dart in Today’s Market
Dart is great for cross-platform app development and has a clean and type-safe syntax. One of the most appealing factors about Dart is that it is easy to use. This language is primarily used with a framework called Flutter, which is a prominent user interface toolkit from Google.
Hundreds of websites worldwide use Dart. Dart apps perform better than their counterparts, and you can use the same script for iOS and Android app development.
Issues companies face while hiring a Dart engineer.
One of the significant issues companies face while hiring Dart engineers is the shortage of experienced Dart professionals. That’s because it’s a fairly new language, and many engineers are still figuring it out. This means that very few engineers in the market know how to build a full-scale application through it.
Dart also keeps coming up with frequent updates and reboots. As a result, engineers have to regularly update themselves with new features and implementations, which can be challenging and time-consuming.
How to select the perfect Dart engineer?
A good Dart engineer should be very experienced with mobile application development design. In addition, they should be able to brainstorm ideas and work on diverse industry projects.
Even though Dart’s static typing feature ensures type safety and alerts the user of any error in typing, a good Dart Engineer should be able to work on QA. They should be able to develop test cases and work on bug fixing.
They should also know about object-oriented programming principles (such as inheritance, objects, and polymorphism). Furthermore, they must keep up to date with the latest Dart updates and APIs.
Interview Questions
Here are some questions you can ask Dart Engineers before hiring them.
#1 What are the different types of lists in Dart?
Dart has 2 types of lists: fixed list and growable list.
The length of the fixed list can’t be altered once defined by the user. They are defined with a specific length, and any command that tries to alter the length returns an error.
A growable list can undergo modification according to the engineer’s needs and preferences. A growable list is defined with items rather than the length of the list, and users can change the length of the growable list at runtime.
#2 How does JIT work in Dart?
A JIT (Just in Time) compiler performs incremental compilation, i.e., it allows you to compile only those parts of a program that you have changed recently. The compiler then just has to change a small part of code into machine language rather than compiling the whole module. This technique decreases runtime and improves development speed.
#3 What makes Dart better than other languages such as JavaScript?
Answer. Dart is open-source and typesafe. It offers better scalability and interface functionality than JavaScript.
It’s also twice as fast as Javascript and can easily run on cloud platforms. In addition, it offers both AOT and JIT compilations to the user, which can speed up the app development process.
#4 What are the various types of operators available In Dart?
In Dart, you can use arithmetic (+,-, *,/), logical operators (AND, OR, NOT), and bitwise operators (&, >>,<<). It also has type test operators (as is) and assignment operators ( =,+ =,-=). In addition, you can use relational operators for defining relations between 2 entities ( >,<,= ).
#5 What are Dart Snapshots?
Snapshots are a part of the Dart Virtual Machine that stores runtime data. Dart has 3 types of snapshots: script snapshot, full snapshot, and object snapshot.
Script snapshot contains the program code and can execute in a remote environment for fast startups (if you load dependencies along with it). A full snapshot file has all the programs’ core libraries and dependencies for program loading. Thus, it can run in a native environment without any extra requirements.
Object snapshots are serialized and snapshotted objects. These can later be deserialized for application use.
Job Description
We are looking for a highly qualified Dart Engineer to build digital products. They would be responsible for large-scale applications and websites. We are searching for a qualified professional who can work on UI development, development life cycle, and QA.
The engineer will be part of a global team that creates diverse projects. Therefore, good communication skills and the ability to collaborate are necessary for this role.
Responsibilities
- Write reusable and reliable Dart code to develop Android and iOS applications.
- Use high-order UI components for creating responsive UI code with HTML, CSS, and JavaScript.
- Work on existing code modules and program architecture.
- Design and participate in code implementation sprints.
- Ensure design compliance and provide application support.
- Diagnose bugs and errors.
- Coordinate with internal and external teams to understand business requirements
- Follow best industry practices and standards.
- {{Add other relevant responsibilities}}
Skills and Qualifications
- Knowledge of mobile app development through Dart. Should have prior experience with Flutter.
- Experience in designing reusable code and modules.
- Proven experience with front end languages such as JavaScript, HTML, and CSS
- Deep understanding of object-oriented programming.
- Experience with code versioning tools (Git and Jenkins)
- Knowledge of APIs and their implementations.
- Problem-solving skills and team spirit.
- {{Add other frameworks or libraries related to your development stack}}
- {{List education level or certification required}}
Conclusion
Dart is a terrific programming language that helps in fast and effective application development. This cross-platform language is quick and robust and allows you to smoothen your code through code synchronization. Using this language for your app development will help you achieve great results.
