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What is the use of size() in map in Salesforce?
What is the use of size() in map in Salesforce?
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3 Replies
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Hi Pooja,
size() Returns the number of key-value pairs in the map.
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Hi Pooja,
size() is a pre defined function in map class which returns the number of key-value pairs in the map.
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A map is a collection of key-value pairs where each unique key maps to a single value. In map Keys can be any primitive data type like string, integer,decimal, Id while values can be a primitive, sObject, collection type or an Apex object
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