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iOS Detection of Screenshot?
...hare pictures with a self-destruct on them. You can only view the pics for X seconds. If you attempt to take a screenshot while the picture is showing using the home-power key combo, it will tell the sender you tried to take a screenshot.
...
How to listen for a WebView finishing loading a URL?
...
Extend WebViewClient and call onPageFinished() as follows:
mWebView.setWebViewClient(new WebViewClient() {
public void onPageFinished(WebView view, String url) {
// do your stuff here
}
});
...
Catch Ctrl-C in C
...
With a signal handler.
Here is a simple example flipping a bool used in main():
#include <signal.h>
static volatile int keepRunning = 1;
void intHandler(int dummy) {
keepRunning = 0;
}
// ...
int main(void) {
signal(SIGINT, intHandler);
while ...
How to see top processes sorted by actual memory usage?
... this mantra for a little while: "unused memory is wasted memory". The Linux kernel keeps around huge amounts of file metadata and files that were requested, until something that looks more important pushes that data out. It's why you can run:
find /home -type f -name '*.mp3'
find /home -type f -na...
How to capture no file for fs.readFileSync()?
...
I prefer this way of handling this. You can check if the file exists synchronously:
var file = 'info.json';
var content = '';
// Check that the file exists locally
if(!fs.existsSync(file)) {
console.log("File not found");
}
// The file *does* exist
else {
// Read the file and do a...
How do I limit the number of rows returned by an Oracle query after ordering?
...12.1), there is a row limiting clause. It does not use familiar LIMIT syntax, but it can do the job better with more options. You can find the full syntax here. (Also read more on how this works internally in Oracle in this answer).
To answer the original question, here's the query:
SELECT *
FROM ...
Best way to find if an item is in a JavaScript array? [duplicate]
... or other older browsers:
function include(arr,obj) {
return (arr.indexOf(obj) != -1);
}
EDIT:
This will not work on IE6, 7 or 8 though. The best workaround is to define it yourself if it's not present:
Mozilla's (ECMA-262) version:
if (!Array.prototype.indexOf)
{
Array.protot...
“render :nothing => true” returns empty plaintext file?
...s to see what content type the response is.
If it's anything other than text/html, you can try to manually set the content type like this:
render :nothing => true, :status => 200, :content_type => 'text/html'
sha...
How do synchronized static methods work in Java and can I use it for loading Hibernate entities?
...enario:
Client A and B attempt to insert different information into record X of table T.
With your approach the only thing you're getting is to make sure one is called after the other, when this would happen anyway in the DB, because the RDBMS will prevent them from inserting half information from A...
Combining multiple commits before pushing in Git [duplicate]
... commit, do this:
git rebase -i origin/master
This will bring up your text editor (-i is for "interactive") with a file that looks like this:
pick 16b5fcc Code in, tests not passing
pick c964dea Getting closer
pick 06cf8ee Something changed
pick 396b4a3 Tests pass
pick 9be7fdb Better comments
pi...