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switch / pattern matching idea
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I know it's an old topic, but in c# 7 you can do :
switch(shape)
{
case Circle c:
WriteLine($"circle with radius {c.Radius}");
break;
case Rectangle s when (s.Length == s.Height):
WriteLine($"{s...
Remove empty array elements
...all this for you:
print_r(array_filter($linksArray));
Keep in mind that if no callback is supplied, all entries of array equal to FALSE (see converting to boolean) will be removed. So if you need to preserve elements that are i.e. exact string '0', you will need a custom callback:
// PHP 7.4 and...
Maximum length of the textual representation of an IPv6 address?
...000
8 * 4 + 7 = 39
8 groups of 4 digits with 7 : between them.
But if you have an IPv4-mapped IPv6 address, the last two groups can be written in base 10 separated by ., eg. [::ffff:192.168.100.228]. Written out fully:
0000:0000:0000:0000:0000:ffff:192.168.100.228
(6 * 4 + 5) + 1 + (4 ...
Why does Math.round(0.49999999999999994) return 1?
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@ Oli: Oh now that's interesting, they took that bit out for Java 7 (the docs I linked to) -- maybe in order to avoid causing this sort of odd behavior by triggering a (further) loss of precision.
– T.J. Crowder
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How do you set, clear, and toggle a single bit?
...is the best around here... std::vector<bool> is another way, if one knows its pros and its cons
– paercebal
Sep 19 '08 at 18:16
24
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ASP.NET MVC 3 - Partial vs Display Template vs Editor Template
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How do you use annotations to specify a display template and an editor template for a single property?
– stormwild
Oct 24 '11 at 10:00
3
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Distinct not working with LINQ to Objects
...custom objects.
All it does is look at your list and see that it has two different objects (it doesn't care that they have the same values for the member fields).
One workaround is to implement the IEquatable interface as shown here.
If you modify your Author class like so it should work.
public...
How to check that an object is empty in PHP?
How to find if an object is empty or not in PHP.
11 Answers
11
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NULL vs nullptr (Why was it replaced?) [duplicate]
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but we can always specify the type using typecast operator like f( (int) NULL ) or f((foo*) NULL ) as an alternative to resolve ambiguity... correct ?
– Arjun
Jun 16 '18 at 17:18
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if else in a list comprehension [duplicate]
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>>> l = [22, 13, 45, 50, 98, 69, 43, 44, 1]
>>> [x+1 if x >= 45 else x+5 for x in l]
[27, 18, 46, 51, 99, 70, 48, 49, 6]
Do-something if <condition>, else do-something else.
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