大约有 40,000 项符合查询结果（耗时：0.0372秒） [XML]
How to find whether or not a variable is empty in Bash
...
In Bash at least the following command tests if $var is empty:
if [[ -z "$var" ]]; then
# Do what you want
fi
The command man test is your friend.
share
|
i...
When should TaskCompletionSource be used?
...
It looks like no one mentioned, but I guess unit tests too can be considered real life enough.
I find TaskCompletionSource to be useful when mocking a dependency with an async method.
In actual program under test:
public interface IEntityFacade
{
Task<Entity> Ge...
How do I raise the same Exception with a custom message in Python?
... where we raise our exception.
Traceback (most recent call last):
File "test.py", line 2, in <module>
1 / 0
ZeroDivisionError: division by zero
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "test.py", line 4, in <modu...
How to remove the querystring and get only the url?
..._parts['path'])?$url_parts['path']:'');
return $constructed_url;
}
$test = array(
'http://www.mydomian.com/myurl.html?unwan=abc',
'http://www.mydomian.com/myurl.html',
'http://www.mydomian.com',
'https://mydomian.com/myurl.html?unwan=abc&ab=1'
);
foreach($test as $url){
...
How to prevent sticky hover effects for buttons on touch devices
... the hover state by temporarily removing the link from the DOM. See http://testbug.handcraft.com/ipad.html
In the CSS you have:
:hover {background:red;}
In the JS you have:
function fix()
{
var el = this;
var par = el.parentNode;
var next = el.nextSibling;
par.removeChild(el);...
How to change an Android app's name?
...
@lxknvlk, from my testing on Android 5 and 5.1, the name referred to in this answer is displayed in the list of installed applications, the uninstall dialog, and the "App Info" screen for your app. If you want to customise the name shown in t...
Referring to the null object in Python
... Python; instead there's None. As stated already, the most accurate way to test that something has been given None as a value is to use the is identity operator, which tests that two variables refer to the same object.
>>> foo is None
True
>>> foo = 'bar'
>>> foo is None
F...
Parsing CSV files in C#, with header
...sions anyway) FileHelpers is by far the best way to go, really convenient, tested and well performing solution
– mikus
Aug 12 '13 at 13:39
4
...
Stubbing a class method with Sinon.js
...nstance of 'Sensor' with none of the class's logic.
var sensor = sinon.createStubInstance(Sensor);
console.log(sensor.sample_pressure());
share
|
improve this answer
|
follo...
How to find out if you're using HTTPS without $_SERVER['HTTPS']
...e is a load balancer between the client and your server, this code doesn't test the connection between the client and the load balancer, but the connection between the load balancer and your server. To test the former connection, you would have to test using the HTTP_X_FORWARDED_PROTO header, but it...