Collection Performance: Exercise Caution When Using Take() with a Basic Count

The LINQ method Take() is frequently employed to extract a portion of a collection and assign it to a variable, as demonstrated in this example:

var result = people.Take(100);

Some code analyzers might suggest using a range, as illustrated here:

var result = people.Take(0..(Index)100);

However, it’s essential to consider whether using a range is more performant for a straightforward count like this.

Benchmark Results

The benchmark results reveal that using Take() with a simple count is 1.59 times faster than employing a range. Both methods allocate 80 bytes in memory.

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