Multiple Assignment

Multiple values can be assigned to multiple variables all at once.

$ x,y=1 2 3, 2:5;
$ x;
[1,2,3]
$ y;
2 : 5

$ x,y=(1 2 3, 2:5);
$ x;
[1,2,3]
$ y;
2 : 5

// multiple assignments by functions returning more than one value
$ def foo(a,b): [a+b, a-b]
$ x,y = foo(15,10);
$ x;
25
$ y;
5

// multiple assignments from the same value
$ x,y=10;
$ x;
10
$ y;
10

// Multiple assignments using columns from a matrix. The variables will take columns from the matrix sequentially. The number of variables must be the same as the number of columns in the matrix.
$ x,y = 1..10$5:2;
$ x;
[1,2,3,4,5]
$ y;
[6,7,8,9,10]

// Multiple assignments using rows from a table. The variables will take rows from the table sequentially. The number of variables must be the same as the number of rows in the table.
$ t = table(1 2 3 as id, 4 5 6 as value, `IBM`MSFT`GOOG as name);
$ t;

id	value	name
1	4	IBM
2	5	MSFT
3	6	GOOG

$ a,b,c = t;
$ a;
name->IBM
value->4
id->1

$ b;
name->MSFT
value->5
id->2

$ c;
name->GOOG
value->6
id->3