On Sunday, 16 February 2014 at 13:22:09 UTC, bearophile wrote:
In the last days of beta3 D+Phobos is getting better in small
but significant ways:
immutable s = ["red", "blue"];
auto js = s.join;
This is very handy because you can join arrays from constant
function arguments, or the result of a map that yields const
items, etc.
-----------------------
And I am finding the optional column number in error messages
very handy, my editor/IDE often jumps at the right column,
saving me tiny amounts of time that adds up making the
debugging nicer. The experience is just better than before.
-----------------------
auto r = [10, 20, 30].sum;
There is the nice old Smalltalk-80 inject:into: method in the
Collection class:
| list sum |
list := OrderedCollection new add: 1; add: 2; add: 3; yourself.
sum := list inject: 0 into: [ :a :b | a + b ].
Transcript cr; show: sum. "prints 6"
A little more general ;-). The Scala guys have also cloned it
where it is called foldLeft.
