tuple_first_ntuple_first_nTupleFirstNtuple_first_nTupleFirstNTupleFirstN (Operator)

Name

tuple_first_ntuple_first_nTupleFirstNtuple_first_nTupleFirstNTupleFirstN — Select the first elements of a tuple up to the index “n”.

Signature

Description

tuple_first_ntuple_first_nTupleFirstNtuple_first_nTupleFirstNTupleFirstN selects the first elements of TupleTupleTupleTupleTupletuple up to the index IndexIndexIndexIndexIndexindex and returns them in SelectedSelectedSelectedSelectedSelectedselected. Indices of tuple elements start at 0, that means, the first tuple element has got the index 0. In total, IndexIndexIndexIndexIndexindex+1 elements are returned.

IndexIndexIndexIndexIndexindex must contain a single integer value (or a floating point number that represents an integer value without fraction).

Exception: Empty input tuple

If TupleTupleTupleTupleTupletuple is empty, an exception is raised.

HDevelop In-line Operation

HDevelop provides an in-line operation for tuple_first_ntuple_first_nTupleFirstNtuple_first_nTupleFirstNTupleFirstN, which can be used in an expression in the following syntax:

Selected := firstn(Tuple, Index)

Parallelization

• Multithreading type: independent (runs in parallel even with exclusive operators).
• Multithreading scope: global (may be called from any thread).
• Processed without parallelization.

Parameters

Alternatives

tuple_last_ntuple_last_nTupleLastNtuple_last_nTupleLastNTupleLastN, tuple_selecttuple_selectTupleSelecttuple_selectTupleSelectTupleSelect, tuple_str_bit_selecttuple_str_bit_selectTupleStrBitSelecttuple_str_bit_selectTupleStrBitSelectTupleStrBitSelect, tuple_concattuple_concatTupleConcattuple_concatTupleConcatTupleConcat, tuple_select_masktuple_select_maskTupleSelectMasktuple_select_maskTupleSelectMaskTupleSelectMask

See also

tuple_removetuple_removeTupleRemovetuple_removeTupleRemoveTupleRemove

Module

Foundation