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Change a Rails application to production
...in production mode? Is there a config file, environment.rb for example, to do that?
15 Answers
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How to create border in UIButton?
...rColor = [UIColor greenColor].CGColor;
See:
https://developer.apple.com/documentation/quartzcore/calayer#//apple_ref/occ/cl/CALayer
The CALayer in the link above allows you to set other properties like corner radius, maskToBounds etc...
Also, a good article on button fun:
https://web.archive.o...
Getting rid of \n when using .readlines() [duplicate]
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This should do what you want (file contents in a list, by line, without \n)
with open(filename) as f:
mylist = f.read().splitlines()
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What is the garbage collector in Java?
I am new to Java and confused about the garbage collector in Java. What does it actually do and when does it comes into action. Please describe some of the properties of the garbage collector in Java.
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Nested fragments disappear during transition animation
...he nested fragment go away the image will simulate their presence. Also, I don't see loosing the interactivity with the nested fragment's views as a problem because I don't think you would want the user to act on them when they are just in the process of being removed(probably as a user action as we...
Best practice for creating millions of small temporary objects
...8479984 secs]
The arrow is before and after size.
As long as it is just doing GC and not a full GC you are home safe. The regular GC is a copy collector in the 'young generation', so objects that are no longer referenced are simply just forgotten about, which is exactly what you would want.
Read...
How to require a fork with composer
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The most common (and easier) way of doing it is using a VCS repository.
All you have to do is add your fork as a repository and update the
version constraint to point to your custom branch. Your custom branch
name must be prefixed with dev-.
Example a...
Passing an array to a function with variable number of args in Swift
... this even with something as simple as trying to delegate my own log calls down to print!
– Mark A. Donohoe
Jul 2 at 18:12
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Performance surprise with “as” and nullable types
...ing or conversion occurs, all machine code is inline and takes but about a dozen instructions. This needed to be really efficient back in .NET 1.0 when boxing was common.
Casting to int? takes a lot more work. The value representation of the boxed integer is not compatible with the memory layout ...
Will strlen be calculated multiple times if used in a loop condition?
... that the value won't change, but I personally wouldn't rely on that.
I'd do something like
for (int i = 0, n = strlen(ss); i < n; ++i)
or possibly
for (int i = 0; ss[i]; ++i)
as long as the string isn't going to change length during the iteration. If it might, then you'll need to either c...