List Blocks
- make a list
- select list item
- replace list item
- remove list item
- insert list item
- length of list
- append to list
- add items to list
- is in list?
- position in list
- pick random item
- is list empty?
- copy list
- is a list?
- list to csv row
- list to csv table
- list from csv row
- list from csv table
make a list
Creates a list from the given blocks. If you don't supply any arguments, this creates an empty list, which you can add elements to later.
select list item
Selects the item at the given index in the given list. The first list item is at index 1.
replace list item
Inserts replacement
into the given list at position
index
. The previous item at that position is removed.
remove list item
Removes the item at the specified position from the list.
insert list item
Inserts an item into a list at the specified position.
length of list
Returns the number of items in the list.
append to list
Adds the items in the second list to the end of the first list
add items to list
Adds the given items to the end of the list. The difference between this and
append to list
is that append to list
takes the items to
be appended as a single list, while add items to list
takes the items
as individual arguments.
is in list?
If thing
is one of the elements of the list
, returns
true; otherwise, returns false. Note that if a list contains sublists, the members
of the sublists are not themselves members of the list. For example, the members of
the list (1 2 (3 4)) are 1, 2, and the list (3 4); 3 and 4 are not themselves
members of the list.
position in list
Returns the position of thing
in the list, or 0 if it's not in the
list.
pick random item
Picks an item at random from the list.
is list empty?
If list has no items, returns true; otherwise, returns false.
copy list
Makes a copy of a list, including copying all sublists.
is a list
If thing
is a list, returns true; otherwise, returns false.
list to csv row
Interprets the list as a row of a table and returns a CSV (comma-separated value) text representing the row. Each item in the row list is considered to be a field, and is quoted with double-quotes in the resulting CSV text. Items are separated by commas. The returned row text does not have a line separator at the end.
list to csv table
Interprets the list as a table in row-major format and returns a CSV (comma-separated value) text representing the table. Each item in the list should itself be a list representing a row of the CSV table. Each item in the row list is considered to be a field, and is quoted with double-quotes in the resulting CSV text. In the returned text, items in rows are separated by commas and rows are separated by CRLF (\r\n).
list from csv row
Parses a text as a CSV (comma-separated value) formatted row to produce a list of fields. It is an error for the row text to contain unescaped newlines inside fields (effectively, multiple lines). It is okay for the row text to end in a single newline or CRLF
list from csv table
Parses a text as a CSV (comma-separated value) formatted table to produce a list of rows, each of which is a list of fields. Rows can be separated by newlines (\n) or CRLF (\r\n).