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What is the difference between Class and Klass in ruby?
..., so you won't be able to have variables named def or module or if or end, etc - class is no different.
For example, consider the following:
def show_methods(class)
puts Object.const_get(class).methods.inspect
end
show_methods "Kernel"
Trying to run this results in an error, since you can't us...
How to implement a many-to-many relationship in PostgreSQL?
...llow NULL values, functions and joins can introduce NULL values in queries etc.
Read the chapter on CREATE TABLE in the manual.
Primary keys are implemented with a unique index on the key columns, that makes queries with conditions on the PK column(s) fast. However, the sequence of key columns is ...
Git branch strategy for small dev team [closed]
... conflicts twice.
I have added steps to always test after a merge and to 'fetch and merge" or 'pull --rebase" a lot (once in the morning and in the afternoon) while developing features. We also used github.com as the central place to pull the latest code.
...
When I catch an exception, how do I get the type, file, and line number?
...xc_tb = sys.exc_info()
fname = os.path.split(exc_tb.tb_frame.f_code.co_filename)[1]
print(exc_type, fname, exc_tb.tb_lineno)
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static allocation in java - heap, stack and permanent generation
... they are given enough memory space to store the return type of the method,etc.
That is inaccurate (or at least, you are not expressing yourself clearly).
If some method accesses a static member variable, what it gets is either a primitive value or an object reference. This may be assigned to an...
Laravel migration: unique key is too long, even if specified
...s guide to fix this all you have to do is edit your AppServiceProvider.php file and inside the boot method set a default string length:
use Illuminate\Database\Schema\Builder;
public function boot()
{
Builder::defaultStringLength(191);
}
...
LF will be replaced by CRLF in git - What is that and is it important? [duplicate]
... whitespace changes because
editors silently introduce them, and if your files ever touch a
Windows system, their line endings might be replaced. Git has a few
configuration options to help with these issues.
core.autocrlf
If you’re programming on Windows and working with people who a...
What are the sizes used for the iOS application splash screen?
...e you guys find it useful.
Yes. In iPhone/iPad development the Default.png file is displayed by the device automatically so you don't have to program it which is really useful. I don't have it with me, but you need different PNGs for the iPad with specific names. I googled iPad default png and got t...
Where is PATH_MAX defined in Linux?
Which header file should I invoke with #include to be able to use PATH_MAX as an int for sizing a string?
5 Answers
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Script Tag - async & defer
...tion (a script you included at
the end may execute before the first script file )
Defer scripts guarantees the order of execution in which they appear
in the page.
Ref this link : http://www.growingwiththeweb.com/2014/02/async-vs-defer-attributes.html
...