Answer
An indexer allows an object to be accessed like an array.
It enables retrieving values using an index without exposing internal data structures.
Quick Answer
An indexer lets you access an object using square bracket syntax — just like arrays. Defined with this[int index]. A custom Matrix class could let you do matrix[0, 1] instead of exposing internal arrays. Syntactic sugar that makes your class feel natural to use.
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SugharaIQ Editorial Team
Verified Answer
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Source: SugharaIQ