Скачать или смотреть Salesforce Apex: Mastering Lists & Essential List Methods - Part 1

Welcome back to the *Apex Beginners' Guide* with Sally! 🌟

In this session, we begin our journey into *Apex Collections* with a focus on **Lists**—a crucial tool for storing and managing data in Salesforce.

🌟 **What You'll Learn**:
The fundamentals of *Collections in Apex* and how they differ from primitive data types.
How to **declare and initialize lists**, both empty and with values.
Key **list methods**, including `add()`, `size()`, `isEmpty()`, `contains()`, and `sort()`.
*Live coding examples* to help you understand how lists work in real-world scenarios.
*Iterating through lists* with `for` and `for-each` loops.

📌 **Timestamps**:

0:00 – Welcome to Code With Sally Sessions (Introduction and overview of today’s session)
0:59 – Session Topic: Introduction to Complex Data Types & Collections (Overview of collections and blog reference)
2:29 – Introduction to Collections in Apex (Understanding Lists, Sets, and Maps + Differences from primitive data types)
4:33 – Deep Dive into Lists (What ordered lists mean, index usage, and allowing duplicates)
9:36 – List Syntax & Basic Operations (Declaring and initializing lists, adding and retrieving values)
10:35 – Live Code Sample: Declaring an Empty List (Practical demonstration of list declaration and initialization)
14:07 – Live Code Sample: Adding Items to a List & Checking Salesforce Documentation (Step-by-step coding demo)
20:05 – Live Code Sample: Retrieving Values from a List (Hands-on coding example to retrieve list elements)
25:04 – Live Code Sample: Initializing a List with Multiple Default Values (Using comma-separated values)
31:00 – Q&A: Can We Add Multiple Items to a List at Once? (Using addAll() method explained)
35:52 – Importance of List Initialization (Explaining why initialization is required, unlike primitive data types)
39:41 – Recap of Live Code Samples (Quick review of list-related concepts learned so far)
40:11 – Key Methods for Lists (Reference to Salesforce List Class documentation)
40:56 – Live Code Sample: Using the Sort Method (Sorting lists in Apex)
43:43 – Live Code Sample: Finding List Size (Using size() method to get the number of items in a list)
44:54 – Live Code Sample: Checking if a List is Empty (Using isEmpty() method)
46:05 – Live Code Sample: Checking if a List Contains a Specific Value (Using contains() method for value search)
48:01 – Iterating Over a List (Using for-each and for loops + live examples)
54:06 – Session Wrap-Up & What’s Next? (Introduction to Sets for the next session)

💬 *Have Questions?*
Drop your thoughts or coding examples in the comments below!

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🔗 **Helpful Links**:
Previous Video: [Salesforce Apex: Mastering Break & Continue + Loop Comparison - Part 3](   • Salesforce Apex: Mastering Break & Continu...  )
Beginner’s Guide to Salesforce Apex: An Introduction to Collections – Lists, Sets, and Maps Blog [https://codewithsally.com/beginners-g...]
Code with Sally Blog: [https://codewithsally.com/]
LinkedIn: [  / sallyelghoul  ]

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