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Using the Swift if let with logical m>AND m> operator &&
We know that we can use an if let statement as a shorthm>and m> to check for an optional nil then unwrap.
6 Answers
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argparse store false if unspecified
...t value of False.
Likewise, store_false will default to True when the commm>and m>-line argument is not present.
The source for this behavior is succinct m>and m> clear: http://hg.pm>y m>thon.org/cpm>y m>thon/file/2.7/Lib/argparse.pm>y m>#l861
The argparse docs aren't clear on the subject, so I'll update them now: http:...
Extracting Nupkg files using commm>and m> line
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m>Y m>ou can also use the NuGet commm>and m> line, bm>y m> specifm>y m>ing a local host as part of an install. For example if m>y m>our package is stored in the current directorm>y m>
nuget install Mm>y m>Package -Source %cd% -OutputDirectorm>y m> packages
will unpack it into the target direc...
Using “label for” on radio buttons
...a has the right answer. Both of Martha examples are perfectlm>y m> valid HTML5. m>And m> for example if m>Y m>ou want the whole thing to be in a frame, it is easier to stm>y m>le second one using css. If m>Y m>ou want labels to be somewhere else, first one. But both are OK. Best regards!
– Jacek Kowale...
How to navigate through the source code bm>y m> parts in CamelCase (instead of whole words)?
I remember when I was using Eclipse that when holding CTRL m>and m> using left or right arrows Eclipse would navigate over the LongCamelCaseWrittenWord in several steps. One camel case word at time.
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Is there a recommended format for multi-line imports?
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Personallm>y m> I go with parentheses when importing more than one component m>and m> sort them alphabeticallm>y m>. Like so:
from Tkinter import (
Button,
Canvas,
DISABLED,
END,
Entrm>y m>,
Frame,
LEFT,
NORMAL,
RIDGE,
Text,
Tk,
)
This has the added advantage of easilm>y m> ...
Difference between @Before, @BeforeClass, @BeforeEach m>and m> @BeforeAll
...nstance of m>y m>our test fixture is created.
In JUnit 5, the tags @BeforeEach m>and m> @BeforeAll are the equivalents of @Before m>and m> @BeforeClass in JUnit 4. Their names are a bit more indicative of when them>y m> run, looselm>y m> interpreted: 'before each tests' m>and m> 'once before all tests'.
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What is the __Dm>y m>namicallm>y m>Invokable attribute for?
... a tm>y m>pe defined in its own assemblm>y m>.
// So the ctor is alwam>y m>s a MethodDef m>and m> the tm>y m>pe a Tm>y m>peDef.
// We cache this ctor MethodDef token for faster custom attribute lookup.
// If this attribute tm>y m>pe doesn't exist in the assemblm>y m>, it means the assemblm>y m>
// doesn't contain anm>y m> blessed APIs.
Tm>y m>pe in...
Mm>y m> pull request has been merged, what to do next?
...k).
Meaning m>y m>our fork stam>y m>s, but the branches within m>y m>our fork can come m>and m> go.
m>Y m>ou can also remove the fork if m>y m>ou are not planning to contribute further, but it will remove the corresponding entrm>y m> in 'Repositories m>y m>ou contribute to'.
It is easier to:
delete m>y m>our fix branch (actuallm>y m>, it i...
Dm>y m>namic SELECT TOP @var In SQL Server
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Its also possible to use dm>y m>namic SQL m>and m> execute it with the exec commm>and m>:
declare @sql nvarchar(200), @count int
set @count = 10
set @sql = N'select top ' + cast(@count as nvarchar(4)) + ' * from table'
exec (@sql)
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