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Difference between declaring variables before or in loop?
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Which is better, a or b?
From a performance perspective, you'd have to measure it. (And in my opinion, if you can measure a difference, the compiler isn't very good).
From a maintenance perspective, b is better. Declare and initialize variables in t...
Refresh all files in buffer from disk in vim
The command to refresh a file from version on disk is :e!
5 Answers
5
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Ruby 2.0.0p0 IRB warning: “DL is deprecated, please use Fiddle”
...l this sounds so unsatisfactory. Anyway, taking note of the comment below from Msangle, "What is fiddle?"
– will
Dec 14 '13 at 12:30
1
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How can I make git ignore future revisions to a file?
... @AdamDymitruk: Yes, clean/smudge can be used in this case, but it's far from clear that that is the best option. For example, this will make it rather hard if people really want to change the file, as the clean/smudge will get in the way. I would actually prefere the approach described here.
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How do I make my GUI behave well when Windows font scaling is greater than 100%
...file was last saved.
const
SmallFontsPixelsPerInch = 96;
function ScaleFromSmallFontsDimension(const X: Integer): Integer;
begin
Result := MulDiv(X, Screen.PixelsPerInch, SmallFontsPixelsPerInch);
end;
So, continuing the theme, another thing to be wary of is that if your project is developed...
In Django, how do I check if a user is in a certain group?
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You can access the groups simply through the groups attribute on User.
from django.contrib.auth.models import User, Group
group = Group(name = "Editor")
group.save() # save this new group for this example
user = User.objects.get(pk = 1) # assuming, there is one initial user
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List vs tuple, when to use each? [duplicate]
...t. Tuples are useful when position has relevance - the best example comes from coordinates in mathematics, which even uses the same syntax: (x, y, z)
– Izkata
Apr 18 '13 at 19:08
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When should we call System.exit in Java
...lease other resources. If there are no other non-daemon threads, returning from main will shut down the JVM and will call the shutdown hooks.
For some reason shutdown hooks seem to be an undervalued and misunderstood mechanism, and people are reinventing the wheel with all kind of proprietary custo...
Is double square brackets [[ ]] preferable over single square brackets [ ] in Bash?
... a weird name.
] is just an argument of [ that prevents further arguments from being used.
Ubuntu 16.04 actually has an executable for it at /usr/bin/[ provided by coreutils, but the bash built-in version takes precedence.
Nothing is altered in the way that Bash parses the command.
In particular...
How do I programmatically determine operating system in Java?
...10 and yet os.name gives me Windows 8.1. Why is that? Where is this coming from?
– Brian
Feb 7 '16 at 19:59
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