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Shell equality operators (=, ==, -eq)
...
It depends on the Test Construct around the operator. Your options are double parenthesis, double braces, single braces, or test
If you use ((...)), you are testing arithmetic equity with == as in C:
$ (( 1==1 )); echo $?
0
$ (( 1==2 )); ec...
Is it possible to install iOS 6 SDK on Xcode 5?
... in the iOS 7 simulator. If you want to see how it looks in the simulator, test on the iOS 6 simulator.
– Rob Napier
Sep 22 '13 at 22:51
1
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Symfony 2 EntityManager injection in service
...anymore. According to the documentation You would pass in:
services:
test.common.userservice:
class: Test\CommonBundle\Services\UserService
arguments: [ "@doctrine.orm.entity_manager" ]
And then they would be available in the order they were listed via the arguments (if ther...
List all indexes on ElasticSearch server?
...fq_1458925279526 1 6 0 0 1008b 144b
green open qa-test_learnq_1460483735129 1 6 0 0 1008b 144b
green open qa-testimportd_1458925361399 1 6 0 0 1008b 144b
green open qa-test123p_reports 1 6 3868280 25605 5.9gb 870.5mb
gr...
Passing properties by reference in C#
...
void Main()
{
var person = new Person();
person.Name = GetString("test", person.Name);
Debug.Assert(person.Name == "test");
}
2. Delegate
void GetString(string input, Action<string> setOutput)
{
if (!string.IsNullOrEmpty(input))
{
setOutput(input);
}
}
void...
List of Big-O for PHP functions
...ose who doubt that PHP array lookups are O(N), I've written a benchmark to test that (they are still effectively O(1) for most realistic values).
$tests = 1000000;
$max = 5000001;
for( $i = 1; $i <= $max; $i += 10000 ) {
//create lookup array
$array = array_fill( 0, $i, NULL );
...
How to check type of files without extensions in python?
...ess file types. There's even a windows port.
From the man page:
File tests each argument in an attempt to classify it. There are three
sets of tests, performed in this order: filesystem tests, magic number
tests, and language tests. The first test that succeeds causes the
file ty...
How to properly compare two Integers in Java?
...d a numeric type (int, long etc) the wrapper type value is unboxed and the test is applied to the primitive values involved.
This occurs as part of binary numeric promotion (JLS section 5.6.2). Look at each individual operator's documentation to see whether it's applied. For example, from the docs ...
What is the difference between typeof and instanceof and when should one be used vs. the other?
...make things clear, you need to know two facts:
The instanceof operator tests whether the prototype property of a constructor appears anywhere in the prototypes chain of an object. In most cases this mean that the object was created by using this constructor or on of its descendant. But also prot...
How do I add custom field to Python log format string?
....basicConfig(format="%(foo)s - %(message)s")
>>> logging.warning('test', extra={'foo': 'bar'})
bar - test
Also, as a note, if you try to log a message without passing the dict, then it will fail.
>>> logging.warning('test')
Traceback (most recent call last):
File "/usr/lib/py...