Salesforce has become an indispensable platform for businesses worldwide, driving a high demand for skilled Salesforce developers. Excelling in a Salesforce coding interview requires more than just theoretical knowledge; it demands practical problem-solving abilities and a deep understanding of the platform's unique architecture and programming paradigms. Interviewers assess your proficiency in Apex, Visualforce, Lightning Web Components, integration techniques, and the ability to navigate Salesforce governor limits effectively. Mastering these areas will significantly boost your chances of securing a coveted developer position. This article provides a comprehensive guide to the top 30 most common Salesforce coding interview questions, offering insights into why they are asked, how to approach them, and example answers to help you prepare thoroughly.
What Are Salesforce Coding Interview Questions?
Salesforce coding interview questions are designed to evaluate a candidate's practical programming skills within the Salesforce ecosystem. These questions typically involve writing Apex code, SOQL queries, or demonstrating an understanding of Salesforce-specific functionalities like Triggers, Flows, and Lightning components. Unlike general coding interviews that might focus solely on algorithms and data structures, Salesforce coding questions often incorporate platform-specific constraints, such as governor limits, asynchronous processing, and security best practices. They test your ability to build scalable, efficient, and maintainable solutions that adhere to Salesforce's unique development model, often presenting real-world business scenarios.
Why Do Interviewers Ask Salesforce Coding Interview Questions?
Interviewers ask Salesforce coding questions for several critical reasons. Primarily, they want to assess your hands-on coding proficiency and ensure you can translate business requirements into functional Salesforce solutions. These questions reveal your understanding of Apex, SOQL, DML operations, and how to effectively utilize Salesforce APIs. Furthermore, coding challenges test your problem-solving approach, your ability to debug, and your awareness of best practices like bulkification and error handling. Interviewers also use these questions to gauge your familiarity with Salesforce's multi-tenant architecture and governor limits, crucial for building scalable applications. Your responses demonstrate not only technical skill but also a mindset geared toward platform optimization and maintainability.
What are Apex Governor Limits, and how do you handle them?
Explain Apex Triggers and their types.
How do you ensure bulkification in Apex Triggers?
Differentiate between
beforeandaftertriggers.When should you use a Trigger Handler Framework?
What is SOQL, and how is it different from SOSL?
Write an SOQL query to retrieve all Contacts associated with Accounts in California.
Explain the Salesforce Order of Execution for DML operations.
Describe different types of asynchronous Apex.
When would you use Queueable Apex over Future methods?
How do you perform a callout from Apex to an external system?
What are
with sharingandwithout sharingkeywords in Apex?How do you write a unit test for an Apex Trigger?
What is the significance of
System.runAs()in Apex tests?Explain Custom Settings vs. Custom Metadata Types.
How do you prevent SOQL Injection in Apex?
Describe the role of
Database.SaveresultandDatabase.DMLOptions.What is the difference between
List,Set, andMapin Apex?Implement a many-to-many relationship in Salesforce.
Explain different ways to handle row-level security in Salesforce.
What is an Apex managed package?
How do you debug Apex code?
Explain static vs. non-static methods and variables in Apex.
How do you access custom labels in Apex?
Describe the use case for Platform Events.
How do you ensure data integrity when performing DML operations in Apex?
When would you use
Database.query()over static SOQL?Explain the use of
TRY-CATCH-FINALLYblocks in Apex.What is a Lightning Web Component (LWC) and its structure?
How do you call an Apex method from a Lightning Web Component?
Preview List
1. What are Apex Governor Limits, and how do you handle them?
Why you might get asked this:
This question assesses your understanding of Salesforce's multi-tenant architecture and the constraints imposed to ensure fair resource usage, crucial for building scalable solutions.
How to answer:
Define governor limits as runtime constraints. Explain common limits (DML rows, SOQL queries, CPU time). Describe mitigation strategies like bulkification, asynchronous Apex, and efficient SOQL.
Example answer:
Governor limits are runtime limits enforced by the Salesforce platform to ensure efficient use of shared resources in its multi-tenant environment. They prevent any single organization from monopolizing resources. Common limits include 100 SOQL queries, 150 DML statements, and 10,000 DML rows per transaction. We handle them through bulkification of DMLs and queries, utilizing asynchronous Apex (Batch, Future, Queueable) for long-running operations, and optimizing loops and conditional logic.
2. Explain Apex Triggers and their types.
Why you might get asked this:
This evaluates your fundamental knowledge of how to automate business processes on database events, a core Salesforce development concept.
How to answer:
Define triggers as Apex code executing before or after DML events. List the trigger events: before insert, before update, before delete, after insert, after update, after delete, after undelete.
Example answer:
Apex Triggers are pieces of code that execute before or after DML operations (insert, update, delete, undelete) on Salesforce records. They enable custom automation and logic in response to data changes. Types include 'before' triggers, which run before a record is saved to the database (used for validation or data modification), and 'after' triggers, which run after a record is saved (used for accessing record IDs or related records).
3. How do you ensure bulkification in Apex Triggers?
Why you might get asked this:
This tests your awareness of writing efficient, scalable Apex code that avoids hitting governor limits when processing multiple records.
How to answer:
Explain that bulkification means processing collections of records, not single records. Describe using Trigger.new or Trigger.old with loops, then performing DML/SOQL outside the loop.
Example answer:
Bulkification ensures triggers process multiple records efficiently to avoid governor limits. Instead of individual DML or SOQL operations inside a loop, we iterate over Trigger.new (or Trigger.old), collect IDs or data into Lists, Sets, or Maps, and then perform a single SOQL query or DML operation outside the loop. This minimizes queries and DML statements, ensuring the code works for single record saves and bulk imports.
4. Differentiate between before and after triggers.
Why you might get asked this:
This question probes your understanding of trigger execution context and when to apply specific logic relative to database commit.
How to answer:
Explain that 'before' triggers run before save for validation/modifying field values. 'After' triggers run after save (record ID available) for related record updates or asynchronous operations.
Example answer:
'Before' triggers execute before records are saved to the database. They are typically used for validation, updating fields on the same record, or preventing a DML operation. The record ID is not yet available. 'After' triggers execute after records are saved. They are suitable for accessing record IDs, performing DML on related records, or executing asynchronous processes since the records and their IDs are committed.
5. When should you use a Trigger Handler Framework?
Why you might get asked this:
This evaluates your knowledge of Apex best practices for maintainable, testable, and scalable trigger architecture.
How to answer:
Explain that a handler framework promotes a "one trigger per object" rule. It centralizes logic, making triggers easier to manage, test, and debug by delegating processing to helper classes.
Example answer:
A Trigger Handler Framework should be used to organize trigger logic, enforce the "one trigger per object" best practice, and improve code maintainability and testability. It delegates trigger context (like Trigger.new, Trigger.old) to a separate handler class, which then contains methods for each DML event. This separates concerns, avoids recursive calls, and makes code easier to read, debug, and manage over time.
6. What is SOQL, and how is it different from SOSL?
Why you might get asked this:
This tests your understanding of Salesforce's data querying languages and when to use each for optimal data retrieval.
How to answer:
Define SOQL for single object querying (relational data) and SOSL for searching across multiple objects (text-based search). Highlight their syntax and use cases.
Example answer:
SOQL (Salesforce Object Query Language) is used to query records from a single standard or custom object, or related records, similar to SQL. It's for structured, relational data retrieval. SOSL (Salesforce Object Search Language) is used to perform text-based searches across multiple objects, including fields that match a specified search term. SOSL is better for searching multiple objects or text within fields, while SOQL is for precise queries on one object.
7. Write an SOQL query to retrieve all Contacts associated with Accounts in California.
Why you might get asked this:
This assesses your ability to perform subqueries or join-like operations in SOQL to retrieve related data efficiently.
How to answer:
Provide an SOQL query using a relationship query (dot notation) or a subquery in the WHERE clause, demonstrating how to link Contact and Account.
Example answer:
Alternatively, using a subquery:
8. Explain the Salesforce Order of Execution for DML operations.
Why you might get asked this:
This is a critical concept for understanding how Salesforce processes data, essential for predicting behavior and debugging issues.
How to answer:
List the key steps: system validation, before triggers, custom validation, after triggers, assignment rules, workflow rules, escalation rules, roll-up summary fields, commit.
Example answer:
The Salesforce Order of Execution defines the sequence of events when a record is saved. It includes initial validation, before Apex triggers, custom validation rules, after Apex triggers, assignment rules, auto-response rules, workflow rules, escalation rules, roll-up summary field calculations, and finally, committing the changes to the database. Understanding this order is vital for predicting behavior and troubleshooting data manipulation issues.
9. Describe different types of asynchronous Apex.
Why you might get asked this:
This tests your understanding of processing long-running operations or large data volumes without hitting governor limits or causing UI timeouts.
How to answer:
Explain Future methods, Batch Apex, Queueable Apex, and Scheduled Apex, highlighting their specific use cases and advantages.
Example answer:
Asynchronous Apex types include: Future methods for simple callouts or offloading single operations; Batch Apex for processing large data volumes (up to 50 million records) by dividing them into manageable chunks; Queueable Apex for chaining jobs and handling complex data types; and Scheduled Apex for running Apex classes at specified times. Each is designed to handle long-running operations or bypass governor limits in a multi-tenant environment.
10. When would you use Queueable Apex over Future methods?
Why you might get asked this:
This question assesses your nuanced understanding of asynchronous processing and selecting the most appropriate tool.
How to answer:
Explain that Queueable Apex allows method chaining and passing complex objects, whereas Future methods are limited to primitive types and cannot be chained.
Example answer:
Queueable Apex is preferred over Future methods when you need to chain jobs, meaning one asynchronous job starts another, or when you need to pass complex, non-primitive data types (like SObjects or custom Apex types) to the asynchronous method. Future methods are simpler but lack these capabilities, making Queueable Apex more flexible for complex asynchronous flows.
11. How do you perform a callout from Apex to an external system?
Why you might get asked this:
This evaluates your ability to integrate Salesforce with external services, a common requirement for enterprise applications.
How to answer:
Describe using HttpRequest and HttpResponse classes, specifying endpoint, method, headers, and body. Mention Http class for sending the request and future method for asynchronous callouts.
Example answer:
To perform a callout from Apex, you use the HttpRequest and HttpResponse classes. First, create an HttpRequest object, set its endpoint URL, HTTP method (GET, POST, PUT, DELETE), headers (like Content-Type), and request body if necessary. Then, use the Http class to send the request and receive an HttpResponse. Callouts must be done asynchronously using @future(callout=true) or Queueable/Batch Apex to avoid UI blocking.
12. What are with sharing and without sharing keywords in Apex?
Why you might get asked this:
This tests your understanding of enforcing or bypassing Salesforce's organization-wide sharing settings and permission sets.
How to answer:
Explain that with sharing enforces the current user's sharing settings (OWD, roles, sharing rules), while without sharing allows the code to run in system context, bypassing sharing rules.
Example answer:
with sharing enforces the organization's sharing rules for the current user. Apex code marked with sharing respects OWD, role hierarchies, and sharing rules, meaning the user can only access records they normally would. without sharing means the Apex code runs in system context, bypassing all sharing rules. It accesses all data regardless of the current user's permissions, but still respects FLS and object permissions.
13. How do you write a unit test for an Apex Trigger?
Why you might get asked this:
This assesses your ability to write robust, maintainable, and comprehensive test classes to ensure code quality and achieve coverage.
How to answer:
Explain the @isTest annotation, creating test data, calling the trigger's DML event, and using System.assert methods. Mention Test.startTest() and Test.stopTest().
Example answer:
To test an Apex Trigger, you create a dedicated test class annotated with @isTest. Inside a test method, you set up all necessary test data (e.g., Account and Contact records) using insert statements. Crucially, you wrap the DML operation that invokes the trigger within Test.startTest() and Test.stopTest(). Finally, use System.assertEquals() or System.assertNotEquals() to verify the trigger's expected behavior by querying the database for the results.
14. What is the significance of System.runAs() in Apex tests?
Why you might get asked this:
This evaluates your knowledge of testing code under different user contexts, crucial for validating sharing and security.
How to answer:
Explain that System.runAs() allows testing code execution as a specific user, enforcing their object permissions, field-level security, and record sharing rules.
Example answer:
System.runAs() is used in Apex test methods to test code under the context of a specific user, including their record sharing rules, object permissions, and field-level security. This is crucial for verifying that your code behaves correctly for different user profiles and ensures that sharing rules (defined by with sharing) are respected or properly bypassed (without sharing). All DML operations within runAs are rolled back.
15. Explain Custom Settings vs. Custom Metadata Types.
Why you might get asked this:
This assesses your knowledge of storing configurable data in Salesforce in a scalable and deployable way.
How to answer:
Define both: Custom Settings for hierarchical/list data, retrieved by Apex. Custom Metadata Types for reusable, customizable application metadata, deployable like code. Highlight key differences.
Example answer:
Custom Settings are custom objects that let you store application data accessible by Apex, Visualforce, and formulas. They are like custom objects but allow data to be cached for faster access, reducing SOQL queries. They can be Hierarchical (per user/profile) or List type. Custom Metadata Types are similar but treat data as metadata. They are deployable and packageable like code, allowing easier management of application configuration across environments, and can be referenced in validation rules, formulas, and flows.
16. How do you prevent SOQL Injection in Apex?
Why you might get asked this:
This question tests your understanding of security best practices in Apex, particularly against common web vulnerabilities.
How to answer:
Explain that SOQL injection occurs when dynamic SOQL is constructed from user input. Prevent it using String.escapeSingleQuotes() or, preferably, by binding variables directly into static SOQL queries.
Example answer:
SOQL Injection occurs when user-supplied input is directly concatenated into a dynamic SOQL query, potentially allowing malicious users to alter the query. To prevent this, use String.escapeSingleQuotes() to sanitize user input if dynamic SOQL is unavoidable. However, the best practice is to use bind variables directly in static SOQL queries. This way, Salesforce automatically handles escaping and prevents injection risks.
17. Describe the role of Database.Saveresult and Database.DMLOptions.
Why you might get asked this:
This tests your advanced understanding of DML operations, especially partial successes and controlling DML behavior.
How to answer:
Explain Database.Saveresult for partial DML success (e.g., Database.insert(records, false)). Database.DMLOptions controls specific DML behaviors like assignment rules or duplicate rules.
Example answer:
Database.Saveresult is returned by DML operations when the allOrNone parameter is set to false (e.g., Database.insert(records, false)). It provides individual success/failure status for each record, allowing for partial success in bulk operations. Database.DMLOptions provides granular control over DML operations, such as disabling assignment rules (setAssignmentRuleHeader()), duplicate rules (setDuplicateRuleHeader()), or workflow rules for specific DML calls.
18. What is the difference between List, Set, and Map in Apex?
Why you might get asked this:
This evaluates your fundamental knowledge of Apex collections, crucial for efficient data manipulation.
How to answer:
Define each: List (ordered, allows duplicates), Set (unordered, no duplicates), Map (key-value pairs, unique keys). Explain typical use cases for each.
Example answer:
List is an ordered collection of elements that can contain duplicates. Elements are accessed by index. Set is an unordered collection of elements that cannot contain any duplicates; it's useful for ensuring uniqueness. Map is a collection of key-value pairs where each unique key maps to a single value. Maps are ideal for quickly retrieving values using a key, like getting an SObject by its ID.
19. Implement a many-to-many relationship in Salesforce.
Why you might get asked this:
This tests your understanding of complex data models and how to implement them using standard Salesforce features.
How to answer:
Explain that Salesforce uses a "junction object." Describe creating a custom object with two master-detail relationships to the two parent objects involved in the many-to-many relationship.
Example answer:
A many-to-many relationship in Salesforce is implemented using a junction object. You create a custom object (e.g., "Course Enrollment" between "Student" and "Course"). This junction object then has two master-detail relationships: one to the "Student" object and one to the "Course" object. Each record in the junction object links one student to one course, allowing a student to enroll in multiple courses and a course to have multiple students.
20. Explain different ways to handle row-level security in Salesforce.
Why you might get asked this:
This assesses your knowledge of Salesforce's declarative security model for controlling data visibility.
How to answer:
List and explain OWD (Organization-Wide Defaults), Role Hierarchy, Sharing Rules (criteria-based, owner-based), Manual Sharing, and Apex Managed Sharing.
Example answer:
Organization-Wide Defaults (OWD): Sets the baseline access for records.
Role Hierarchy: Grants users access to records owned by or shared with users below them in the hierarchy.
Sharing Rules: Extends access beyond OWD based on criteria or record ownership.
Manual Sharing: Grants explicit access to individual records.
Apex Managed Sharing: Programmatic sharing for complex or dynamic sharing requirements.
Row-level security in Salesforce is managed through:
21. What is an Apex managed package?
Why you might get asked this:
This tests your understanding of application distribution and intellectual property protection within the Salesforce ecosystem.
How to answer:
Define it as a collection of Salesforce components (Apex, objects, pages) that is compiled and distributed as a single unit via AppExchange. Emphasize IP protection and upgradeability.
Example answer:
An Apex managed package is a collection of Salesforce components (Apex classes, triggers, Visualforce pages, LWC, objects, etc.) that are packaged together by a developer and distributed through the AppExchange. Once installed, its Apex code is compiled, and intellectual property is protected (code is not visible). Managed packages are upgradeable, allowing developers to push new versions with fixes and enhancements to subscribers.
22. How do you debug Apex code?
Why you might get asked this:
This assesses your practical skills in troubleshooting and identifying issues within your Salesforce code.
How to answer:
Mention using Debug Logs, System.debug() statements, the Developer Console's debug capabilities, and the Apex Replay Debugger.
Example answer:
I primarily debug Apex code using the Salesforce Developer Console. I set debug log levels to trace operations and use System.debug() statements strategically in the code to output variable values, execution flow, and specific messages. After executing the code, I review the debug logs in the Developer Console, filtering by log level and text. For more complex issues, the Apex Replay Debugger in VS Code allows step-through debugging of logs.
23. Explain static vs. non-static methods and variables in Apex.
Why you might get asked this:
This tests your fundamental understanding of object-oriented programming concepts in the context of Apex.
How to answer:
Define static members as belonging to the class (accessed via class name, no instance needed). Non-static (instance) members belong to an object (accessed via object instance).
Example answer:
Static members (methods or variables) belong to the class itself, not to a specific instance of the class. They are accessed directly using the class name (e.g., MyClass.myStaticMethod()). Static variables retain their value across all instances of the class within a single transaction. Non-static (or instance) members belong to an object created from the class. They are accessed via an instance of the class (e.g., MyClass instance = new MyClass(); instance.myInstanceMethod();). Each instance has its own copy of non-static variables.
24. How do you access custom labels in Apex?
Why you might get asked this:
This assesses your knowledge of best practices for internationalization and managing dynamic text in Apex.
How to answer:
Explain that custom labels provide a way to store multi-language text. Access them in Apex using System.Label.YourLabelName syntax.
Example answer:
Custom labels are used to store text values that can be accessed from Apex, Visualforce, Lightning components, or validation rules. They are particularly useful for supporting multi-language applications. In Apex, you access a custom label using the System.Label class, followed by the label's API name: String myMessage = System.Label.MyCustomMessage;. This makes your code more dynamic and easier to translate.
25. Describe the use case for Platform Events.
Why you might get asked this:
This tests your understanding of event-driven architecture and real-time integration patterns in Salesforce.
How to answer:
Explain Platform Events as an event-driven architecture pattern in Salesforce. Use cases include real-time integrations, connecting internal Salesforce processes, and triggering automation on external system events.
Example answer:
Platform Events are part of Salesforce's event-driven architecture, enabling real-time communication between different systems (Salesforce and external) or within Salesforce itself. A common use case is sending event notifications from Salesforce to an external system (e.g., "New Order Created" event) or from an external system into Salesforce to trigger Apex, Flow, or Process Builder automation. They are scalable, reliable, and decoupled, making them ideal for complex integration scenarios.
26. How do you ensure data integrity when performing DML operations in Apex?
Why you might get asked this:
This evaluates your understanding of transactional control and error handling to maintain data quality.
How to answer:
Discuss using database methods with allOrNone=false for partial success, try-catch blocks for error handling, Database.setSavepoint() and Database.rollback() for transactional control.
Example answer:
Error Handling: Use
try-catchblocks to gracefully handle exceptions during DML operations, preventing unhandled errors.Partial Success: For bulk DML where some records might fail, use
Database.insert(records, false)to allow successful records to commit while providing error details for failures.Transactional Control: For complex multi-step operations, use
Database.setSavepoint()andDatabase.rollback()to revert changes if subsequent steps fail, ensuring atomicity.Validation Rules & Triggers: Leverage Salesforce's declarative and programmatic validation to enforce business rules before data is committed.
To ensure data integrity, I employ several strategies:
27. When would you use Database.query() over static SOQL?
Why you might get asked this:
This tests your understanding of dynamic querying and its appropriate use cases in Apex.
How to answer:
Explain that Database.query() is used for dynamic SOQL queries where the query string is constructed at runtime (e.g., based on user input or metadata). Static SOQL is preferred for known, fixed queries.
Example answer:
Database.query() is used when you need to construct a SOQL query dynamically at runtime. This is common when the fields, object, or WHERE clause conditions are not known until the code executes, perhaps based on user input, custom metadata, or other runtime parameters. For example, building a search functionality where users can select fields to query. Static SOQL, on the other hand, is generally preferred when the query is fixed and known at compile time due to its compile-time validation and better readability.
28. Explain the use of TRY-CATCH-FINALLY blocks in Apex.
Why you might get asked this:
This assesses your ability to write robust, error-tolerant code in Apex, which is crucial for production systems.
How to answer:
Describe try (code to monitor), catch (handle exceptions), and finally (code that always executes). Explain their purpose in graceful error handling and resource management.
Example answer:
TRY-CATCH-FINALLY blocks are used for exception handling in Apex. The try block encloses the code that might throw an exception. If an exception occurs, the code inside the catch block executes, allowing you to gracefully handle the error (e.g., log it, display an error message). The finally block contains code that always executes, regardless of whether an exception occurred or was caught. This is useful for cleanup operations or ensuring resources are released.
29. What is a Lightning Web Component (LWC) and its structure?
Why you might get asked this:
This tests your knowledge of modern Salesforce UI development and the framework's core components.
How to answer:
Define LWC as a client-side framework built on web standards. Describe its typical structure: HTML template, JavaScript class, and XML configuration file.
Example answer:
.html: The component's template, defining its UI using standard HTML and LWC directives.
.js: The JavaScript class that contains the component's logic, properties, and event handlers.
.js-meta.xml: The configuration file that defines the component's metadata, visibility (e.g., to record pages), and design properties.
A Lightning Web Component (LWC) is a client-side JavaScript framework for building modern user interfaces on the Salesforce platform, built on web standards. Its structure typically consists of three files:
30. How do you call an Apex method from a Lightning Web Component?
Why you might get asked this:
This assesses your understanding of the interaction between the client-side UI and server-side logic in LWC.
How to answer:
Explain import statement for Apex method, use of @track or @wire for reactive properties, and calling imperatively or via @wire service.
Example answer:
To call an Apex method from an LWC, first, you import the Apex method into your JavaScript file using its fully qualified name (e.g., import getAccounts from '@salesforce/apex/AccountController.getAccounts';). You can call it imperatively (e.g., on a button click) by invoking the imported method directly and handling promises. Alternatively, you can use the @wire service to call a method and automatically provision its data to a property or function, making the component reactive to changes in the data.
Other Tips to Prepare for a Salesforce Coding Interview
Preparing for a Salesforce coding interview goes beyond memorizing answers; it requires a holistic approach to solidify your skills and confidence. As renowned American author and speaker Stephen Covey once said, "The key is not to prioritize what's on your schedule, but to schedule your priorities." Make consistent coding practice a priority. Utilize online platforms like LeetCode and HackerRank for general algorithm practice, but always tailor your solutions to Salesforce's Apex language and governor limits. Deeply understand Salesforce's unique architecture, including its multi-tenant environment, security model, and API capabilities. Review official Salesforce documentation regularly to stay updated on best practices and new features.
Practice scenario-based questions that mimic real-world business problems. This helps you apply your knowledge creatively and efficiently. Don't just focus on writing code; think about error handling, bulkification, and test coverage. For an invaluable edge, consider using tools like Verve AI Interview Copilot. It offers AI-powered mock interviews, providing instant feedback on your answers and helping you refine your communication skills. Verve AI Interview Copilot can simulate a Salesforce-specific interview, guiding you through common questions and assessing your technical and soft skills. It's like having a personal coach, helping you identify areas for improvement and build confidence. Explore more at https://vervecopilot.com. Remember, success is a journey, not a destination. As Vince Lombardi wisely stated, "Practice does not make perfect. Only perfect practice makes perfect." Consistent, focused preparation using tools like Verve AI Interview Copilot will significantly enhance your readiness.
Frequently Asked Questions
Q1: How much code coverage is required for Apex deployments?
A1: At least 75% code coverage is required for all Apex classes and triggers to be deployed to production in Salesforce.
Q2: Can I use JavaScript libraries in Salesforce Apex?
A2: No, Apex is a server-side language. JavaScript libraries are used on the client-side, typically within Lightning Components.
Q3: What's the difference between Salesforce Sandbox and Production environments?
A3: Sandboxes are isolated copies of your production environment used for development, testing, and training, without affecting live data. Production is your live organizational environment.
Q4: What is the purpose of the @TestVisible annotation in Apex?
A4: @TestVisible allows private or protected methods/variables to be accessed by test methods, facilitating thorough testing without changing access modifiers for production code.
Q5: How can I bypass a governor limit in Apex?
A5: You cannot bypass governor limits; instead, you must design your code to operate within them, typically through bulkification, efficient querying, and asynchronous processing.
