On Monday, 21 June 2021 at 06:04:56 UTC, Mike Parker wrote:
On Monday, 21 June 2021 at 05:36:36 UTC, mw wrote:
i.e append an array of elements into another array:
```Python
x = [1, 2, 3]
x.extend([4, 5])
print(x) # [1, 2, 3, 4, 5]
```
Thanks.
```d
x ~= [4, 5];
```
Ha! great. I didn't
On Monday, 21 June 2021 at 06:16:15 UTC, mw wrote:
Ha! great. I didn't know `~` works for both single elements and
array!
`~` by itself is the concatenation operator and only works with
two array operands. `~=` is the append operator and can append
arrays or single elements.
On Monday, 21 June 2021 at 05:36:36 UTC, mw wrote:
i.e append an array of elements into another array:
```Python
x = [1, 2, 3]
x.extend([4, 5])
print(x) # [1, 2, 3, 4, 5]
```
Thanks.
```d
x ~= [4, 5];
```
On 6/21/21 12:12 AM, someone wrote:
I mean, coding as following:
```d
int intWhatever = 0; /// default being zero anyway
foreach (classComputer objComputer, objComputers) { ... } /// explicitly
declaring the type instead of letting the compiler to figure it out
struc Whatever {
public
On 6/21/21 4:55 AM, frame wrote:
On Monday, 21 June 2021 at 03:32:58 UTC, someone wrote:
Since memory serves I use to name files with - instead of the more
common _
The module name has to be strict and "-" is not allowed.
However, you should be able to import files with a "-" in the name.
On Monday, 21 June 2021 at 08:35:19 UTC, frame wrote:
An associative array is not a range but a struct, so it is
extra work to create a range from the AA to apply range
functions.
You can get a range from it by using something like
std.array.byPair() but for this usage you would be better
On Monday, 21 June 2021 at 13:29:59 UTC, Steven Schveighoffer
wrote:
It does work. However, you have to tell the compiler the file
to compile.
Which completely ignores filenames if the compiler is satisified.
You may assume by reading the manual that the compiler would make
an automatic
On Monday, 21 June 2021 at 08:40:47 UTC, ag0aep6g wrote:
`~` works just fine with single elements:
void main()
{
import std.stdio;
int[] a = [2, 3, 4];
writeln(1 ~ a ~ 5); /* [1, 2, 3, 4, 5] */
}
Cool. I've had it in my head for many years now that this
On Monday, 21 June 2021 at 03:59:10 UTC, someone wrote:
I often need to iterate through a filtered collection
(associative array) as following:
```d
string strComputerIDunwanted = "WS2"; /// associative array key
to exclude
foreach (strComputerID, udtComputer; udtComputers) { ///
On Monday, 21 June 2021 at 08:06:06 UTC, frame wrote:
Even if it would have an impact ...
Furthermore, regardless of the impact, one of the pros of
explicitly coding like this is to help future-portings of the
base code to another language if need so, the team porting the
code won't be
On Monday, 21 June 2021 at 03:59:10 UTC, someone wrote:
Is there a way to filter the collection at the foreach-level to
avoid the inner if ?
Here's how I would do it:
foreach (k, v; coll) {
if (k == unwanted) continue;
...
}
You still have an if, but the actual loop body doesn't have
On Monday, 21 June 2021 at 13:29:59 UTC, Steven Schveighoffer
wrote:
It does work. However, you have to tell the compiler the file
to compile.
When an import is used, the compiler does 2 stages:
1. Search through already-seen modules, and see if one matches
2. Search the filesystem to find
On 6/21/21 5:00 PM, Elronnd wrote:
On Monday, 21 June 2021 at 03:59:10 UTC, someone wrote:
Is there a way to filter the collection at the foreach-level to avoid
the inner if ?
Here's how I would do it:
foreach (k, v; coll) {
if (k == unwanted) continue;
...
}
You still have an if,
On Monday, 21 June 2021 at 22:08:56 UTC, Steven Schveighoffer
wrote:
It's actually visually shorter than doing the filter.
Indeed; in a few very-specific situations I usually write code
like this since it allows me to concentrate on the task at hand
and not on the details to access the
On Tuesday, 17 November 2015 at 13:00:11 UTC, Gary Willoughby
wrote:
On Tuesday, 17 November 2015 at 02:40:14 UTC, Domain wrote:
How to use readText to read utf16 file? Or other encoding file.
Here's a helpful resource when working with text files in D.
On Monday, 21 June 2021 at 15:32:09 UTC, wjoe wrote:
something like this ?
``` D
import std.array;
import std.algorithm;
udtComputers.byPair
.filter!(p => p.key != strComputerIDunwanted)
.each!( (p) { /* foreach body */ } );
```
This seems really interesting :)
Almost
On Monday, 21 June 2021 at 13:23:04 UTC, Steven Schveighoffer
wrote:
For sure there is a difference in what the compiler has to do.
Indeed.
But I think the check is likely trivial, and inconsequential as
far as compiler runtimes. D is going to already figure out the
types of expressions
On Monday, 21 June 2021 at 21:00:42 UTC, Elronnd wrote:
Here's how I would do it:
foreach (k, v; coll) {
if (k == unwanted) continue;
...
}
You still have an if, but the actual loop body doesn't have to
be nested, so it's easy to follow the control flow.
almost the same
On Monday, 21 June 2021 at 08:06:06 UTC, frame wrote:
Even if it would have an impact - it may change with a new
compiler release. I personally use explicit declaration in a
foreach loop, because the IDEs don't get the type and it cost
me more time to figure out the method signature on
On 2021-06-20 17:14, vnr wrote:
On Sunday, 20 June 2021 at 14:28:26 UTC, jfondren wrote:
On Sunday, 20 June 2021 at 13:58:22 UTC, vnr wrote:
Thanks for the answers, I understand better what is going on.
So, what should I do to make my server respond with a random image,
and not the random
On 6/20/21 10:36 PM, mw wrote:
i.e append an array of elements into another array:
```Python
x = [1, 2, 3]
x.extend([4, 5])
print(x) # [1, 2, 3, 4, 5]
```
Thanks.
There is also std.range.chain, which can visit multiple ranges in
sequence without copying elements. This is a lifesaver when
On Monday, 21 June 2021 at 03:32:58 UTC, someone wrote:
Since memory serves I use to name files with - instead of the
more common _
The module name has to be strict and "-" is not allowed.
However, you should be able to import files with a "-" in the
name.
From the manual:
If the file name
On Monday, 21 June 2021 at 04:12:55 UTC, someone wrote:
I mean, coding as following:
Even if it would have an impact - it may change with a new
compiler release. I personally use explicit declaration in a
foreach loop, because the IDEs don't get the type and it cost me
more time to figure
On Monday, 21 June 2021 at 03:59:10 UTC, someone wrote:
I often need to iterate through a filtered collection
(associative array) as following:
```d
string strComputerIDunwanted = "WS2"; /// associative array key
to exclude
foreach (strComputerID, udtComputer; udtComputers) { ///
On 21.06.21 09:02, Mike Parker wrote:
On Monday, 21 June 2021 at 06:16:15 UTC, mw wrote:
Ha! great. I didn't know `~` works for both single elements and array!
`~` by itself is the concatenation operator and only works with two
array operands. `~=` is the append operator and can append
On 6/20/21 8:59 PM, someone wrote:
I often need to iterate through a filtered collection (associative
array) as following:
```d
string strComputerIDunwanted = "WS2"; /// associative array key to exclude
foreach (strComputerID, udtComputer; udtComputers) { /// ..remove!(a =>
a ==
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