# In List§

See primary documentation
in context
for **routine sum**

sub sum( )method sum(List:)

Returns the sum of all elements in the list or 0 if the list is empty. Throws an exception if an element can not be coerced into Numeric.

say (1, 3, pi).sum; # OUTPUT: «7.14159265358979»say (1, "0xff").sum; # OUTPUT: «256»say sum(0b1111, 5); # OUTPUT: «20»

If the list includes a `Junction`

, the result will accordingly be a `Junction`

:

say ( 1|2, 3).sum; # OUTPUT: «any(4, 5)»

When called on native integer arrays, it is also possible to specify a `:wrap`

named parameter. This will add the values as native integers, wrapping around if they exceed the size of a native integer. If you are sure you will not exceed that value, or if you don't mind, using `:wrap`

will make the calculation about 20x as fast.

my int = ^1_000_000;say .sum(:wrap); # OUTPUT: «499999500000»

# In Range§

See primary documentation
in context
for **method sum**

multi method sum(Range:)

Returns the sum of all elements in the Range. Throws `X::Str::Numeric`

if an element can not be coerced into Numeric.

(1..10).sum # 55

# In Any§

See primary documentation
in context
for **method sum**

method sum() is nodal

If the content is iterable, it returns the sum of the values after pulling them one by one, or 0 if the list is empty.

(3,2,1).sum; # OUTPUT: «6»say 3.sum; # OUTPUT: «3»

It will fail if any of the elements cannot be converted to a number.