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Home/ Questions/Q 7894015
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Editorial Team
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Editorial Team
Asked: June 3, 20262026-06-03T07:17:06+00:00 2026-06-03T07:17:06+00:00

For example, we have two collections: coll1 = {1,2,3,4,5} coll2 = {3,4,5,6,7,8,9} How to

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For example, we have two collections:

coll1 = {1,2,3,4,5}
coll2 = {3,4,5,6,7,8,9}

How to find count of elements contains in both collections(best performance)?
For example above the result must be equal 3.

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  1. Editorial Team
    Editorial Team
    2026-06-03T07:17:08+00:00Added an answer on June 3, 2026 at 7:17 am
    coll1.Intersect(coll2 ).Count()
    
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