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What is meant by Scala's path-dependent types?
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My favorite example:
case class Board(length: Int, height: Int) {
case class Coordinate(x: Int, y: Int) {
require(0 <= x && x < length && 0 <= y && y < height)
}
val occupied = scala.collec...
What is a typedef enum in Objective-C?
...C++), any references to this must be preceded with the enum keyword. For example:
enum tagname x; // declare x of type 'enum tagname'
tagname x; // ERROR in C/Objective-C, OK in C++
In order to avoid having to use the enum keyword everywhere, a typedef can be created:
enum tagname { ... };
ty...
How Do I Hide wpf datagrid row selector
...HeadersVisibility="Column" and RowHeaderWidth="0" (or just the last one) fixes this problem.
– Jarek Kardas
Oct 2 '12 at 16:01
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What do “branch”, “tag” and “trunk” mean in Subversion repositories?
...ubversion allows sysadmins to create hook scripts which are triggered for execution when certain events occur; for instance, committing a change to the repository. It is very common for a typical Subversion repository implementation to treat any path containing "/tag/" to be write-protected after cr...
How accurate is python's time.sleep()?
...package (at least in Ubuntu 10.04 LTS).
EDIT: Correction non-realtime Linux kernels have minimum sleep interval much closer to 1ms then 10ms but it varies in a non-deterministic manner.
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How do I make sure every glyph has the same width?
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Since 3.1.1, you could use the icon-fixed-width class instead of having to edit the CSS.
http://fortawesome.github.io/Font-Awesome/3.2.1/examples/#navigation
Since 4.0, you should use fa-fw:
4.x https://fontawesome.com/v4.7.0/examples/#fixed-width
5.x https://...
remove legend title in ggplot
...lmost there : just add theme(legend.title=element_blank())
ggplot(df, aes(x, y, colour=g)) +
geom_line(stat="identity") +
theme(legend.position="bottom") +
theme(legend.title=element_blank())
This page on Cookbook for R gives plenty of details on how to customize legends.
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What is the maximum length of a URL in different browsers?
What is the maximum length of a URL in different browsers? Does it differ among browsers?
18 Answers
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Sound effects in JavaScript / HTML5
... buffers automatically when created
snd.play();
There's no support for mixing in current version of the spec.
To play same sound multiple times, create multiple instances of the Audio object. You could also set snd.currentTime=0 on the object after it finishes playing.
Since the JS constructo...
How do I align views at the bottom of the screen?
...onstraintLayout with app:layout_constraintBottom_toBottomOf="parent"
The example below creates a FloatingActionButton that will be aligned to the end and the bottom of the screen.
<android.support.constraint.ConstraintLayout
xmlns:android="http://schemas.android.com/apk/res/android"
xmlns...