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Express.js: how to get remote client address
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If you are running behind a proxy like NGiNX or what have you, only then you should check for 'x-forwarded-for':
var ip = req.headers['x-forwarded-for'] || req.connection.remoteAddress;
If the proxy isn't 'yours', I wouldn...
UITableView Cell selected Color?
...nd non-nil for section-group tables UITableViewStyleGrouped).
Therefore, if you're using a plain-style table, then you'll need to alloc-init a new UIView having your desired background colour and then assign it to selectedBackgroundView.
Alternatively, you could use:
cell.selectionStyle = UITabl...
How to run a command in the background and get no output?
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Use nohup if your background job takes a long time to finish or you just use SecureCRT or something like it login the server.
Redirect the stdout and stderr to /dev/null to ignore the output.
nohup /path/to/your/script.sh > /dev/...
How can I restart a Java application?
...ain().getCodeSource().getLocation().toURI());
/* is it a jar file? */
if(!currentJar.getName().endsWith(".jar"))
return;
/* Build command: java -jar application.jar */
final ArrayList<String> command = new ArrayList<String>();
command.add(javaBin);
command.add("-jar");
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Print array elements on separate lines in Bash?
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Try doing this :
$ printf '%s\n' "${my_array[@]}"
The difference between $@ and $*:
Unquoted, the results are unspecified. In Bash, both expand to separate args
and then wordsplit and globbed.
Quoted, "$@" expands each element as a separate argument, while "$*"
expands to the a...
Use PHP to create, edit and delete crontab jobs?
...ntab -r' delete all the jobs of the user? Is there any way to delete a specific line of job in the crontabs of the user? Loading, searching and then deleting the found line seems to be the only way.
– datasn.io
Dec 12 '10 at 11:26
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List all virtualenv
...s it.
brief usage:
$ lsvirtualenv -b
long usage:
$ lsvirtualenv -l
if you don't have any hooks, or don't even know what i'm talking about, just use "brief".
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Event for Handling the Focus of the EditText
...rride
public void onFocusChange(View view, boolean hasFocus) {
if (hasFocus) {
Toast.makeText(getApplicationContext(), "Got the focus", Toast.LENGTH_LONG).show();
} else {
Toast.makeText(getApplicationContext(), "Lost the focus", Toast.LENGTH_LONG).show();...
HTML-parser on Node.js [closed]
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If you want to build DOM you can use jsdom.
There's also cheerio, it has the jQuery interface and it's a lot faster than older versions of jsdom, although these days they are similar in performance.
You might wanna have a ...
How to check if a JavaScript variable is NOT undefined? [duplicate]
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var lastname = "Hi";
if(typeof lastname !== "undefined")
{
alert("Hi. Variable is defined.");
}
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