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What does |= (ior) do in Python?
... # 3
where the final value of s1 is equivalent either by:
an assigned OR operation
an in-place OR operation
an in-place OR operation via special method++
Example
Here we apply OR (|) and the inplace OR (|=) to sets:
>>> s1 = {"a", "b", "c"}
>>> s2 = {"d", "e"...
Removing elements by class name?
...
If you prefer not to use JQuery:
function removeElementsByClass(className){
var elements = document.getElementsByClassName(className);
while(elements.length > 0){
elements[0].parentNode.removeChild(elements[0]);
}
}
...
How to set different label for launcher rather than activity title?
...evice first before assuming something is working? This solution, as stated by others, does NOT work on a real device. I've tested in 4 devices (vanilla and non-vanilla Android) and nothing. This only works on the emulator. The only way I found was to use setTitle as described on Anila's answer.
...
DropDownList in MVC 4 with Razor
...answered Jul 18 '13 at 15:21
chridamchridam
82.4k1818 gold badges159159 silver badges185185 bronze badges
...
Is either GET or POST more secure than the other?
...rginally less secure than the POST request. Neither offers true "security" by itself; using POST requests will not magically make your website secure against malicious attacks by a noticeable amount. However, using GET requests can make an otherwise secure application insecure.
The mantra that you "...
LIMIT 10..20 in SQL Server
... is not part of standard SQL. It's supported as a vendor extension to SQL by MySQL, PostgreSQL, and SQLite.
Other brands of database may have similar features (e.g. TOP in Microsoft SQL Server), but these don't always work identically.
It's hard to use TOP in Microsoft SQL Server to mimic the L...
How to clear/remove observable bindings in Knockout.js?
... say you have a top level view model storeViewModel, your cart represented by cartViewModel,
and a list of items in that cart - say cartItemsViewModel.
You would bind the top level model - the storeViewModel to the whole page. Then, you could separate the parts of your page that are responsible for...
Why does viewWillAppear not get called when an app comes back from the background?
...re's no out of the box way to tell which is the 'current' UIViewController by the way. But you can find ways around that, e.g. there are delegate methods of UINavigationController for finding out when a UIViewController is presented therein. You could use such a thing to track the latest UIViewContr...
Why would you use an ivar?
...in order to do the right thing.
Binary Size
Declaring everything readwrite by default usually results in many accessor methods you never need, when you consider your program's execution for a moment. So it will add some fat to your program and load times as well.
Minimizes Complexity
In some cases, ...
How to obtain the query string from the current URL with JavaScript?
...w.location.search.
Solution that work in legacy browsers as well
MDN provide an example (no longer available in the above referenced article) of how to the get value of a single key available in the QueryString. Something like this:
function getQueryStringValue (key) {
return decodeURICompone...