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What is the difference between List, Map and Set in Salesforce?
What is the Difference Between List, Map and Set in Salesforce?
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4 Replies
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The list is a type of ordered collection that maintains the elements in insertion order, Set is a type of unordered collection and Map is a collection of key-value pairs.
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This reply was modified 5 years, 10 months ago by
Forcetalks.
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This reply was modified 5 years, 10 months ago by
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Hi Pooja,
List- A list is an ordered collection of elements that are distinguished by their indices. List elements can be of any data type—primitive types, collections, sObjects.
Set- A set is an unordered collection of elements that do not contain any duplicates. Set elements can be of any data type—primitive types, collections, sObjects.
Map- 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.
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List: This is the most common collection data type. It includes a sort() method, so we use a list whenever we need something to be ordered.
Set: Sets are unordered collection and It enforces uniqueness (it means, used to prevent duplicates in our code).
Map: It is a collection that consists of key-value pairs.
- Keys - It behaves like a set (which is unique).
- Values - It behaves like a list.
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This reply was modified 5 years, 10 months ago by Forcetalks.
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This reply was modified 5 years, 10 months ago by Forcetalks.
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List- it is an ordered collection.
Set- it is an unordered collection.
Map- it is a collection of key-value pairs.
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This reply was modified 5 years, 10 months ago by Forcetalks.
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This reply was modified 5 years, 10 months ago by
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