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Easy way to test a URL for 404 in PHP?
...ocket as soon as end-of-headers is detected.
Limitations:
- only gets the root URL (see line with "GET / HTTP/1.1").
- don't support HTTPS (nor the default HTTPS port).
*/
if(!function_exists('get_headers'))
{
function get_headers($url,$format=0)
{
$url=parse_url($url);
$en...
How to detect online/offline event cross-browser?
...INE = true;
function checkNetwork() {
$.ajax({
// Empty file in the root of your public vhost
url: '/networkcheck.txt',
// We don't need to fetch the content (I think this can lower
// the server's resources needed to send the HTTP response a bit)
type: 'HEAD',
cache: fals...
Why don't C++ compilers define operator== and operator!=?
... != that breaks the semantics of ==)
The reason this is the case has its roots (as many of C++ problems) in C. There, the assignment operator is implicitly defined with bit by bit assignment but that wouldn't work for ==. A more detailed explanation can be found in this article from Bjarne Stroust...
git add all except ignoring files in .gitignore file
... favorite text editor to open the file called .git/info/exclude within the root of your Git repository. Any rule you add here will not be checked in, and will only ignore files for your local repository.
In Terminal, navigate to the location of your Git repository
Using your favorite text editor, ...
Soft keyboard open and close listener in an activity in Android
... adjustResize in the manifest. You can use a layout listener to see if the root layout of your activity is resized by the keyboard.
I use something like the following base class for my activities:
public class BaseActivity extends Activity {
private ViewTreeObserver.OnGlobalLayoutListener keyb...
“java.lang.OutOfMemoryError : unable to create new native Thread”
...ble to create new native thread");
} Thread::start(native_thread);`
Root cause : JVM throws this exception when
JVMTI_RESOURCE_EXHAUSTED_OOM_ERROR (resources exhausted (means memory
exhausted) ) or JVMTI_RESOURCE_EXHAUSTED_THREADS (Threads exhausted).
In my case Jboss is creating too ma...
How to .gitignore files recursively
...
@puk : the .gitignore in this question was in the repo root (parent directory of /Webapp).
– lucid_dreamer
May 6 '18 at 22:33
...
Relative paths in Python
...ipt that was used to invoke the Python interpreter.
Use this path as the root folder from which you apply your relative path
>>> import sys
>>> import os.path
>>> sys.path[0]
'C:\\Python25\\Lib\\idlelib'
>>> os.path.relpath(sys.path[0], "path_to_libs") # if you...
Disable developer mode extensions pop up in Chrome
...ve it.
Click Pack extension. A .crx and .pem file will be created near the root directory of the extension. Install the extension using the .crx file and keep the .pem file safe.
Copy the .crx installed extension ID to the whitelist and restart Chrome.
The popup should be gone.
...
How to check iOS version?
...e if < iOS 4.0, and send it to the Detail View Controller myself in the Root View's -didSelectRowAtIndexPath.
– jww
Jul 17 '11 at 9:36
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