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How to know which version of Symfony I have?
...
Although there are already many good answers I'd like to add an option that hasn't been mentioned. Using the command:
php bin/console about
you can get many details about the current project. The first section is about Symf...
Python class inherits object
...w" style classes: they have, directly or indirectly (e.g inherit from a built-in type), object as a base class:
>>> class NewSpam(object): # directly inherit from object
... pass
>>> NewSpam.__bases__
(<type 'object'>,)
>>> class IntSpam(int): ...
Why is iostream::eof inside a loop condition (i.e. `while (!stream.eof())`) considered wrong?
...ner and more reliable error handling, and is the always correct solution (although, not necessarily the tersest).
To summarize what is being suggested as the "proper" termination and read order is the following:
int data;
while(in >> data) { /* ... */ }
// which is equivalent to
while( !(...
Bootstrap table striped: How do I change the stripe background colour?
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works well on overwriting the default bootstrap table color. Thank you.
– euccas
Aug 26 '15 at 22:21
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Where'd padding go, when setting background Drawable?
...I found was adding a 9 patch as a background resource reset the padding - although interestingly if I added a color, or non-9 patch image, it didn't. The solution was to save the padding values before the background gets added, then set them again afterwards.
private EditText value = (EditText) fi...
isset() and empty() - what to use
...ing a variable that has been set to NULL
Your code would be fine as:
<?php
$var = '23';
if (!empty($var)){
echo 'not empty';
}else{
echo 'is not set or empty';
}
?>
For example:
$var = "";
if(empty($var)) // true because "" is considered empty
{...}
...
Understanding CUDA grid dimensions, block dimensions and threads organization (simple explanation) [
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Hardware
If a GPU device has, for example, 4 multiprocessing units, and they can run 768 threads each: then at a given moment no more than 4*768 threads will be really running in parallel (if you planned more threads, they will be waiting their turn).
Software
threads ...
What is a “callable”?
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A callable is anything that can be called.
The built-in callable (PyCallable_Check in objects.c) checks if the argument is either:
an instance of a class with a __call__ method or
is of a type that has a non null tp_call (c struct) member which indicates callability otherw...
Alphabet range in Python
...abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~ \t\n\r\x0b\x0c'
punctuation = '!"#$%&\'()*+,-./:;<=>?@[\\]^_`{|}~'
whitespace = ' \t\n\r\x0b\x0c'
share
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What is the difference between ~> and >= when specifying rubygem in Gemfile?
...~>0.8.5 is semantically equivalent to:
gem "cucumber", ">=0.8.5", "<0.9.0"
The easy way to think about it is that you're okay with the last digit incrementing to some arbitrary value, but the ones preceding it in the string cannot be greater than what you provided. Thus for ~>0.8.5, an...