listx (util v1.3.5)

Miscelaneous list functions

Author: Serge Aleynikov saleyn@gmail.com

Summary

Copy every element of tuple TS to tuple TT ignoring the item at Ignore position

group(Pos, List)

Group elements in the List by element at position Pos.

sum/1

Add every positional element of each tuple in the list. E.g. sum([{1,2}, {3,4}, {5,6}]) -> {9,12}.

Add every positional element of two tuples. E.g. sum({1,2}, {3,4}) -> {3,6}.

Convert a record/tuple to a list of {Name,Value} pairs, where Name is a field name taken from the Fields list.

Copy every element of tuple TS to tuple TT ignoring the item at Ignore position

-spec group(Pos :: integer(), List :: [tuple()]) -> [{any(), tuple()}].

Group elements in the List by element at position Pos.

Add every positional element of each tuple in the list. E.g. sum([{1,2}, {3,4}, {5,6}]) -> {9,12}.

Add every positional element of two tuples. E.g. sum({1,2}, {3,4}) -> {3,6}.

-spec zip_record(list(), tuple()) -> list().

Convert a record/tuple to a list of {Name,Value} pairs, where Name is a field name taken from the Fields list.