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A map is a collection of key-value pairs where each unique key maps to a single value. Keys and values can be any data type—primitive types, collections, sObjects, user-defined types, and built-in Apex types.
- Lists
Even though the size of the previous String array is defined...
- Use Collections
Collections. A collection is a type of variable that can...
- Lists
Collections. A collection is a type of variable that can store multiple items. In our tea example, we have a sugar bowl with several sugar cubes inside it. The sugar bowl is considered a collection and the sugar cubes are items that are stored in that collection.
Working with collections like List, Map, and Set is part of an everyday routine for Apex developers. While their basic use is straightforward, there are some advanced quirks that can get you to the next level.
25 Απρ 2023 · Master Salesforce Apex collections with our beginner's guide. Learn all about Lists, Maps, and Sets and how to use them in your code.
26 Οκτ 2021 · Interviewer: What types of collections, does Apex support? Interviewee: : 3 types of collections as of now, apex supports. maps : <key, value> pair; sets : unique and unordered collection
Salesforce Collections. Collections are the data structures in Apex (Salesforce programming language) that allow you to work with data as an array, list and set. Collections are an integral part in bulk operations providing efficiency, a live connection and increase the performance by hitting db only once.
Learn more about Collection in Apex from S2Labs; Collections is a data structure that can store multiple items of the same type.
