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Call by name vs call by value in Scala, clarification needed
...(x: => Int) = {
println("x1=" + x)
println("x2=" + x)
}
Now what happens when we call them with our side-effecting function?
scala> callByValue(something())
calling something
x1=1
x2=1
scala> callByName(something())
calling something
x1=1
calling something
x2=1
So you can see that...
How to make a transparent HTML button?
...
For me, I had to apply the property "cursor: pointer" to button:hover. With solely button it did not work.
– Spixmaster
Aug 14 at 9:58
...
Django: multiple models in one template using forms [closed]
I'm building a support ticket tracking app and have a few models I'd like to create from one page. Tickets belong to a Customer via a ForeignKey. Notes belong to Tickets via a ForeignKey as well. I'd like to have the option of selecting a Customer (that's a whole separate project) OR creating a new ...
Cross-platform way of getting temp directory in Python
...ython 3.6.5 on Windows 10, tempfile.gettempdir() resolves to C:\users\user\AppData\Local\Temp. An unfortunately long path.
– solvingJ
Apr 25 '18 at 20:17
add a comment
...
what is the difference between sendStickyBroadcast and sendBroadcast in Android
...m/d/msg/android-developers/8341SaXhvmY/…. It is an old post but probably applies still
– Mr_and_Mrs_D
Nov 25 '13 at 14:27
1
...
CSS - Overflow: Scroll; - Always show vertical scroll bar?
... or not.
The fix: In your css include -
::-webkit-scrollbar {
-webkit-appearance: none;
width: 7px;
}
::-webkit-scrollbar-thumb {
border-radius: 4px;
background-color: rgba(0, 0, 0, .5);
box-shadow: 0 0 1px rgba(255, 255, 255, .5);
}
/* always show scrollbars */
::-webkit-scro...
Redirect to named url pattern directly from urls.py in django?
...clude
urlpatterns = [
# this example uses named URL 'hola-home' from app named hola
# for more redirect's usage options: https://docs.djangoproject.com/en/2.1/topics/http/shortcuts/
path('', lambda request: redirect('hola/', permanent=False)),
path('hola/', include("hola.urls")),
...
Automatic Preferred Max Layout Width is not available on iOS versions prior to 8.0
...ug in Xcode6-Beta6 and XCode6-Beta7 and can be safely ignored for now.
An Apple engineer in the Apple Developer forums had this to say about the bug:
Preferred max layout width is an auto layout property on UILabel that
allows it to automatically grow vertically to fit its content.
Versions...
How do I send a POST request with PHP?
...ns = array(
'http' => array(
'header' => "Content-type: application/x-www-form-urlencoded\r\n",
'method' => 'POST',
'content' => http_build_query($data)
)
);
$context = stream_context_create($options);
$result = file_get_contents($url, false, $context);...
How to monitor the memory usage of Node.js?
...le example, you can see that allocating an array of 10M elements consumers approximately 80MB (take a look at heapUsed).
If you look at V8's source code (Array::New, Heap::AllocateRawFixedArray, FixedArray::SizeFor), then you'll see that the memory used by an array is a fixed value plus the length m...