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How to use mysql JOIN without ON condition?
Is it possible to write join query without ON statement? and how do these joins differ LEFT JOIN, RIGHT JOIN works.
2 A...
What's better at freeing memory with PHP: unset() or $var = null
...is garbage-collected.) (bug 33595)
The question "difference between unset and = null" details some differences:
unset($a) also removes $a from the symbol table; for example:
$a = str_repeat('hello world ', 100);
unset($a);
var_dump($a);
Outputs:
Notice: Undefined variable: a in xxx
NULL
But ...
How to detect if a variable is an array
What is the best de-facto standard cross-browser method to determine if a variable in JavaScript is an array or not?
12 Ans...
Can inner classes access private variables?
...ava though, there is no correlation between an object of type Outer::Inner and an object of the parent class. You have to make the parent child relationship manually.
#include <string>
#include <iostream>
class Outer
{
class Inner
{
public:
Inner(Outer& ...
How do I apply a perspective transform to a UIView?
...ws] objectAtIndex:0];
CALayer *layer = myView.layer;
CATransform3D rotationAndPerspectiveTransform = CATransform3DIdentity;
rotationAndPerspectiveTransform.m34 = 1.0 / -500;
rotationAndPerspectiveTransform = CATransform3DRotate(rotationAndPerspectiveTransform, 45.0f * M_PI / 180.0f, 0.0f, 1.0f, 0.0f...
Can I set max_retries for requests.request?
The Python requests module is simple and elegant but one thing bugs me.
It is possible to get a requests.exception.ConnectionError with a message like:
...
PHP - concatenate or directly insert variables in string
...in such a case (Variable interpolation), which I find easier to both write and read.
The result will be the same; and even if there are performance implications, those won't matter 1.
As a sidenote, so my answer is a bit more complete: the day you'll want to do something like this:
echo "Welcome...
Filename too long in Git for Windows
...hen Git is compiled with msys. It uses an older version of the Windows API and there's a limit of 260 characters for a filename.
So as far as I understand this, it's a limitation of msys and not of Git. You can read the details here:
https://github.com/msysgit/git/pull/110
You can circumvent this ...
Do you use source control for your database items? [closed]
...d never think of writing code without version control in a million years-- and rightly so-- can somehow be completely oblivious to the need for version control around the critical databases their applications rely on. I don't know how you can call yourself a software engineer and maintain a straight...
nvm keeps “forgetting” node in new terminal session
... Isn't this already the job of nvm use? After $ nvm alias default 0.11.13 and $ nvm use 0.11.12, I get node --version = 0.11.12. Still, in a new session, node is gone again. In debian, I don't have this issue at all.
– frhd
Jul 5 '14 at 17:04
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