Tag: Lightning Component

Lightning Platform, Salesforce

Top 10 benefits of Lightning web component over Aura Lightning Components

What is the Lightning Web Component (LWC)? 

The Lightning web component introduced in Feb 2019 is Salesforce’s new programming model built on modern browser improvements or web standards.

These web components help to create custom, reusable HTML tags for web pages & apps.

The lightning component uses different components – The lightning web component & the Aura Component.  

Most important! 

Lightning web component co-exists with the Aura programming model & delivers unparalleled performance.

It is highly useful for:

Improving productivity: Uses modern web language like templates, shadow DOM, Decorators, custom elements.
Enhanced Performance: Web browser executes the code for the superfast experience.

Web Stack Transformation

*Source: Salesforce

As per the development in the last five years, there is a complete transformation in the web stack. 

From 2014 to 2019, the superfast rise in standard web elements is phenomenal. 

Salesforce Lightning web components are like icing on the cake. Now, work is handled efficiently by the web browser.

Lightning web components leverage templates, custom elements, Decorators, Modules, Rendering & events available in ECMAScript 7 & beyond.

Advantages of Lightning web component :

  • Offers enhanced security
  • Superfast & Light in weight
  • Supports advanced browsers technologies like CSS3, HTML5

Aura Lightning Component:

Aura is a user interface framework that develops single-page applications on the Salesforce platform.

It develops reusable component units in the form of a plug & play component. Every aura component performs small tasks independently.

Many aura components work together to create a single application.

Read more to learn What Makes Salesforce Lightning Special – Top 10 Lightning Features

Anatomy of Aura Component

*Source: Salesforce

Aura Component Programming model offers excellent benefits like:

  • Out-of-the-box components: 

Aura out of the box components ensures that the app does not need optimization for different devices.

  • Fast Development: 

Teams work faster with, out of the box component that functions hassle-free with different devices like mobile & desktop.

  • Browser compatibility: 

Apps are compatible with the latest browser technologies like HTML5.

Benefits of Lightning Web component (LWC) over Aura Lightning Component (ALC)

  • Site Loading Speed:

The Lightning web component is hugely faster than the Aura component in loading web pages.

  • Easy Learning:

The Lightning web component script uses HTML & Javascript language. That means tasks are more comfortable to do.

  • Best performance: 

As LWC builts on web components, It makes LWC extremely lightweight & efficient in memory management. That’s the reason LWC runs much faster than Aura lightning components.

  • Debugging made easy:

Debugging is significantly easier for LWC than ALC. Different Salesforce discussion forums address & execute the step by step debugging topics very quickly.

  • Easy to ramp:

The absence of a different framework enables developers to learn LWC more easily.

  • Standardized:

As LWC uses core web components, it offers everything needed for the blazing-fast performance of browsers. It uses common coding languages like CSS, Javascript & HTML.

  • Inbuilt browser security features:

LWC has inbuilt browser security features driving its out-of-the-box usage while Aura requires an event-driven programming model that is GUI dependent. 

It focuses on actions like button press & clicks determining the flow of movement. The Lightning web components support these actions. 

  • Data binding:

Data binding is a technique that binds data sources from the provider and consumer together and synchronizes them. 

LWC supports two-way data binding that helps in coordinating how data moves between different components.

  • Unit testing Support:

LWC supports the unit testing framework.

  • Versatility:

Full encapsulation is available with LWC.

Let’s Conclude:

We have seen ten significant advantages of the Lightning web component over Aura lightning components. CEPTES is a Salesforce Silver consulting partner that can guide you as your strategic partner to speed up the business value of your Salesforce.com investment through consultation, digitization, and innovation. If you are thinking of growing your business using the Salesforce platform, then get in touch; we are happy to help you.

Read more: Salesforce Lightning Web Components: The new way to build Lightning Apps

Salesforce, Salesforce Lightning

Salesforce Lightning Testing Service: An Introduction

The Salesforce ecosystem is highly customizable and equally complex. Salesforce Lightning is a component-based framework for app development and consists of various tools, technologies, and frameworks to facilitate easy and efficient development.

As your Lightning Components become more complex, the possibility of errors and defects in the code increases. It is therefore of utmost importance to ensure that all the enhancements and features don’t crash or compromise other components.

The best way to ensure this doesn’t happen is to use automated testing, which has various benefits like:

  • Ease of mitigating risks and verify that the components work as designed.
  • Automated tests help you carry out a repeatable and predictable assessment of your code.
  • Automated tests help you evaluate the impact of changes on your code.

Lightning Testing Service (LTS) framework consists of tools that help you in testing the JavaScript in your Lightning Components. With a suite of tools and services integrated with Salesforce, LTS eases the process of testing your Lightning Components. This tool is an effective way to ensure that all your lightning components work as expected. The tool supports standard JavaScript frameworks such as Mocha and Jasmine.

Lightning Testing Service consists of the following components:

  1. Wrappers for using popular JavaScript testing frameworks within your Salesforce org. At present, Salesforce provides wrappers for Jasmine and Mocha, but users can create their own wrappers compatible with other frameworks.
  2. A utility object to facilitate easy integration of your tests with the Lightning components. Using the object, you can instantiate components, fire application events, etc.
  3. Integration with Salesforce DX enables you to run tests from the command line.

Installing LTS is a straightforward task and can be done in two ways:

  • Writing a one-line command in Salesforce CLI
  • Manually installing the unmanaged package in case you aren’t using Salesforce CLI

Whichever way the LTS is installed, the LTS package includes the following items:

  1. Example test suites- both Jasmine JavaScript files and Mocha JavaScript files
  2. Example components to be tested, an apex class, and a custom label
  3. LTS infrastructure that includes frameworks and wrappers for Jasmine and Mocha, LTS test utilities, test runner component, and a wrapper test app.

Once LTS is installed, users can explore the existing test suites, as well as write their own tests. All testable components are named beginning with “eg” and can be accessed just like any other Auro component. The example tests are included in the form of static resources. To write your own tests, you can go through a separate document that describes the flow and lifecycle of using the LTS to automate testing. The Lightning Test Service facilitates easy testing of your Lightning components using popular JavaScript frameworks such as Jasmine and Mocha.

To know more about Lightning Testing & how to implement an efficient LTS framework, please get in touch with our certified Lightning QA experts.