What is Apex and Visualforce?

Apex and Visual Force. Visualforce is a component-based user interface (UI) framework that allows the development of strong and reusable interfaces. Apex is a platform for developing software as a service (SaaS

software as a service (SaaS

The software industry includes businesses for development, maintenance and publication of software that are using different business models, mainly either "license/maintenance based" (on-premises) or "Cloud based" (such as SaaS, PaaS, IaaS, MBaaS, MSaaS, DCaaS etc.).

https://en.wikipedia.org › wiki › Software_industry

Software industry - Wikipedia

) applications based on the CRM functionality of Salesforce.

What is Apex for Salesforce?

Apex enables developers to access the Salesforce platform back-end database and client-server interfaces to create third-party SaaS applications. Apex includes an application programming interface (API) that Salesforce developers can use to access user data on the platform.

What is the use of Visualforce in Salesforce?

Visualforce is a component-based user interface (UI) framework that enables the creation of dynamic, reusable interfaces. The Visualforce framework is part of Salesforce's Force.com Platform as a Service (PaaS) offering, which is designed to simplify the development and deployment of cloud applications and websites.

What is Apex method?

In Apex, all primitive data type arguments, such as Integer or String, are passed into methods by value. This fact means that any changes to the arguments exist only within the scope of the method. When the method returns, the changes to the arguments are lost.

When should I use Apex?

Introduction to Apex

What are Apex classes used for?

In Salesforce, Apex classes are used to implement the actions associated with an object. Apex classes will have specific methods to execute the actions of the object. classes will have constructors to create the objects.

Does visualforce use Apex?

Visualforce Controllers

A developer can either use a standard controller provided by the Lightning platform, or add custom controller logic with a class written in Apex: A standard controller consists of the same functionality and logic that is used for a standard Salesforce page.

What is LWC in Salesforce?

What are Lightning Web Components? LWC is a new programming model to develop Salesforce lightning components. It's a UI framework that is built using native HTML and modern JavaScript.

When should I use Visualforce?

Visualforce consists of a tag-based markup language that gives developers a more powerful way of building applications and customizing the Salesforce user interface. With Visualforce you can: Build wizards and other multistep processes. Create your own custom flow control through an application.

What is REST vs SOAP?

Representational state transfer (REST) is a set of architectural principles. Simple object access protocol (SOAP) is an official protocol maintained by the World Wide Web Consortium (W3C). The main difference is that SOAP is a protocol while REST is not.

What is REST and SOAP in Salesforce?

1.REST API has no has no official standard at all because it is an architectural style. SOAP API, on the other hand,has an official standard because it is a protocol. 2.REST APIs uses multiple standards like HTTP, JSON, URL, and XML while SOAP APIs is largely based on HTTP and XML.

What is API in Salesforce?

API stands for Application Programming Interface. --> Salesforce provides programmatic access to your organization's information using simple, powerful, and secure application programming interfaces[API's].

Is Apex same as Java?

Syntactically, yes, Apex is similar to Java. If you can program in Java, you are really close to being an Apex developer! But no, this is not Java. It is compiled like Java, it has a Java Virtual Machine in the background – somewhere – but it's not a full-fledged VM, only the part of it.

What is Apex and syntax in Salesforce?

Using syntax that looks like Java and acts like database stored procedures, Apex enables developers to add business logic to most system events, including button clicks, related record updates, and Visualforce pages. Apex code can be initiated by Web service requests and from triggers on objects.

What is DOM in Salesforce?

The DOM (DOM (Document Object Model) is just a model of the document. It could be a HTML/XHTML documents or XML document. The DOM only describes a structure of objects and it representation and accessibility.

What is Aura and LWC?

conventions in Aura were specifics of the framework, whereas conventions in LWC are just standard HTML, CSS, or JavaScript. Whereas in Aura, you had a . cmp file, in LWC, you have a . html file. And whereas in Aura, you used custom Aura events, in LWC, you use standard DOM events.

Which is better aura or LWC?

While the Aura framework needed to implement a proprietary component model, proprietary language extensions, and proprietary modules, LWC uses web stack features implemented natively by browsers, which means that LWC apps are substantially more performant.

What is Visualforce language?

The Visualforce framework includes a tag-based markup language, similar to HTML, and a set of server-side “standard controllers” that make basic database operations, such as queries and saves, very simple to perform.

What is Visualforce controller?

A Visualforce controller is a set of instructions that specify what happens when a user interacts with the components specified in associated Visualforce markup, such as when a user clicks a button or link.

Is visualforce like HTML?

Visualforce is a tag-based markup language like Hyper Text Markup Language(HTML). Visualforce has User Interface frameworks for building various attractive and dynamic applications.

Is Apex easy to learn?

Learning Apex will not be easy but you can do it. Persevere! It is a journey that will make you smarter and more desirable on the job market. The use of the above 4 resources combined with the 2 tools and 3 attitudes will bring triumph to your clutch.

What is virtual class in Salesforce?

The virtual definition modifier declares that this class allows extension and overrides. You cannot override a method with the override keyword unless the class has been defined as virtual .

What are the different data types in Apex?