Apex

🚀 Apex Programming Topics Overview

🧠 Fundamentals of Apex

1. Collections in Salesforce Learn about Lists, Sets, and Maps — core data structures every Apex developer should master.

2. Mastering OOP in Salesforce Apex: A Quick Guide Dive into Object-Oriented Programming principles tailored for Apex.

3. Governor Limits in Salesforce Understand platform constraints to write efficient, scalable Apex code.

4. Order of Execution in Salesforce Explore the lifecycle of triggers and automation when records are saved.

5. Custom settings in salesforce

🔐 Security & Sharing Concepts

1. With Sharing and Without Sharing in Salesforce Control record-level access in Apex classes with sharing keywords.

2. Understanding WITH SECURITY_ENFORCED in Salesforce Apex A declarative way to respect field- and object-level security in SOQL.

3. User Mode in Apex – The New Way to Respect Permissions Discover the difference between user and system mode in modern Apex.

4. User Mode vs WITH SECURITY_ENFORCED in Apex

5. Understanding DescribeFieldResult in Apex with Real-Time Examples
   

🧪 Testing & Debugging

1. What is a Test Class in Salesforce? Learn to write test methods, and How to Test Callouts Using HttpCalloutMock Interfaces.

2. SeeAllData in Salesforce When and why to use SeeAllData=true in test classes.

3. How to Handle UNABLE_TO_LOCK_ROW Error in Salesforce Tactics for resolving row-lock issues in concurrent operations.

🧰 Apex Design Patterns & Practices

1. Wrapper Class in Salesforce Structure complex data and build sophisticated UI components.
2. Savepoint & Rollback in Apex Implement transactional control using Apex database methods.
3. SOQL List For Loop vs SOQL For Loop Compare techniques for iterating over query results efficiently.
4. Call Apex Code from a Process Builder in Salesforce Trigger custom logic via declarative tools.

🧼 Writing Better Apex Code

1. Apex Code Best Practices Guidelines for writing robust and maintainable code.
2. No More Null Crashes: 5 Tips for Apex Developers Defend your code against NullPointerException nightmares.
3. Naming Conventions in Apex Best practices for Classes, Methods, Variables, and Comments.
4. Naming Conventions for Apex Test Classes in Salesforce Maintain a clean and consistent testing strategy.