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How to determine if one array contains all elements of another array
...oing (a1 & a2) instead of (a2 & a1), which is why I was seeing the error. You are right about & retaining the order from the first array.
– CubaLibre
Aug 23 '12 at 13:35
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Is XSLT worth it? [closed]
...es>
<FixedBugs>
<Bug id="123" component="Admin">Error when clicking the Foo button</Bug>
<Bug id="125" component="Core">Crash at startup when configuration is missing</Bug>
<Bug id="127" component="Admin">Error when clicking the Bar ...
How to do an instanceof check with Scala(Test)
...ses because it gives you the typecasting for free and leaves less room for error.
Example:
OuterType foo = blah
foo match {
case subFoo : SubType => {
subFoo.thingSubTypeDoes // no need to cast, use match variable
}
case subFoo => {
// fallthrough code
}
}
...
What do 'real', 'user' and 'sys' mean in the output of time(1)?
... so times recorded for very short running tasks may be subject to rounding errors, as the example given by the original poster shows.
A brief primer on Kernel vs. User mode
On Unix, or any protected-memory operating system, 'Kernel' or 'Supervisor' mode refers to a privileged mode that the CPU can...
Single vs double quotes in JSON
...;http://my.com</a>'}" ? In this case, ast.literal_eval throws syntax error
– alancalvitti
Apr 23 '19 at 16:04
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How to view UTF-8 Characters in VIM or Gvim
...on so you won't run into the most confusing "Can't convert some character" error when saving.
– Maxim Sloyko
Mar 4 '11 at 12:21
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How to read attribute value from XmlNode in C#?
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A shorthand way of not getting an error for nulls is node.Attributes?["Name"]?.Value
– brandonstrong
Mar 2 '17 at 19:51
1
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Why does “return list.sort()” return None, not the list?
....sort() NOT sorted() on the list afterwards, since this generates the same error l = ['1']; l = sorted(l.append('2')) (I just added semi-colon so you could cut/paste and run)
– JGFMK
May 30 '18 at 9:54
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What does $_ mean in PowerShell?
...
@Xalorous: Just because it doesn't produce an error doesn't mean it works: Get-ChildItem | Add-Member -Type NoteProperty -Name Bar -Value $_.Name -PassThru | Select Bar ... Well, it can work if you have a $_ in the scope where you're executing that pipeline. But that's v...
Can't compare naive and aware datetime.now()
...bjects are aware, and you can compare them
Note: This would raise a ValueError if tzinfo is already set. If you are not sure about that, just use
start_time = challenge.datetime_start.replace(tzinfo=utc)
end_time = challenge.datetime_end.replace(tzinfo=utc)
BTW, you could format a UNIX timestam...