How to Use ARRAY_CONSTRAIN in Google Sheets in 2020?

ARRAY_CONSTRAINConstrains an array result to a specified size.
Sample Usage

ARRAY_CONSTRAIN(A1:C10, 2, 3)

ARRAY_CONSTRAIN(SORT(A1:F100, 1, TRUE), 10, 6)

Syntax

ARRAY_CONSTRAIN(input_range, num_rows, num_cols)

input_range – The range to constrain.
num_rows – The number of rows the result should contain.
num_cols – The number of columns the result should contain

Notes

Generally used in combination with other functions that return an array result when a fewer number of rows or columns are desired.

See Also

ARRAYFORMULA: Enables the display of values returned from an array formula into multiple rows and/or columns and the use of non-array functions with arrays.