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How to detect if a variable is an array
...ng() (this is guaranteed to work by ECMA-262):
Object.prototype.toString.call(obj) === '[object Array]'
Both methods will only work for actual arrays and not array-like objects like the arguments object or node lists. As all array-like objects must have a numeric length property, I'd check for th...
Process all arguments except the first one (in a bash script)
...a simple script where the first argument is reserved for the filename, and all other optional arguments should be passed to other parts of the script.
...
How to benchmark efficiency of PHP script
...
If you actually want to benchmark real world code, use tools like Xdebug and XHProf.
Xdebug is great for when you're working in dev/staging, and XHProf is a great tool for production and it's safe to run it there (as long as you read t...
Pure virtual function with implementation
...e type can still define an implementation. A derived class can explicitly call the base class implementation (if access permissions allow it) by using a fully-scoped name (by calling A::f() in your example - if A::f() were public or protected). Something like:
class B : public A {
virtual voi...
Which Eclipse version should I use for an Android app?
... to download the Android SDK bundle:
http://developer.android.com/sdk/installing/bundle.html
The ADT Bundle provides everything you need to start developing apps,
including a version of the Eclipse IDE with built-in ADT (Android
Developer Tools) to streamline your Android app development.
...
Limitations of SQL Server Express
...fering a fully managed dedicated server with SQL Server Web version () installed. My company handles web development, and has about 20+ clients using ASP.Net + SQL Server 2005.
...
SQL query to get all values a enum can have
...
The unnest call will return records of type myenum with a column name of "myenum". You might also want to cast the enum to text and specify a column name by adding something like. ::text AS my_column
– Justin Oh...
How can I convert string date to NSDate?
... */
let date = dateFormatter.dateFromString(/* your_date_string */)
For further query, check NSDateFormatter and DateFormatter classes of Foundation framework for Objective-C and Swift, respectively.
Swift 3 and later (Swift 4 included)
let dateFormatter = DateFormatter()...
Setting Authorization Header of HttpClient
...ent = new HttpClient())
{
client.DefaultRequestHeaders.Authorization = _username.ToAuthHeaderValue(_password);
}
Again I think 2 above options make the client using statement a bit less repetitive. Keep in mind that it's best practice to reuse the HttpClient if you are making multiple http ca...
Import CSV to mysql table
...ocalhost';
$user = 'root';
$pass = '';
$database = 'database';
$db = mysql_connect($host, $user, $pass);
mysql_query("use $database", $db);
/********************************************************************************/
// Parameters: filename.csv table_name
$argv = $_SERVER[argv];
if($argv[1...