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How can you find the height of text on an HTML canvas?
...Ascent and tmDescent returned by Win32's GetTextMetric API. This is needed if you want to do a word-wrapped run of text with spans in different fonts/sizes.
The above image was generated on a canvas in Safari, red being the top line where the canvas was told to draw the text, green being the base...
Convert Float to Int in Swift
I want to convert a Float to an Int in Swift. Basic casting like this does not work because these types are not primitives, unlike float s and int s in Objective-C
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Java 8 Streams - collect vs reduce
...is created and each element is "added" to that collection. Collections in different parts of the stream are then added together.
The document you linked gives the reason for having two different approaches:
If we wanted to take a stream of strings and concatenate them into a
single long strin...
Printing object properties in Powershell
When working in the interactive console if I define a new object and assign some property values to it like this:
7 Answers...
How does Access-Control-Allow-Origin header work?
...ss-Control-Allow-Origin header opens a door for cross-origin access by specific requesting origins.
For each resource/page that Site B wants to make accessible to Site A, Site B should serve its pages with the response header:
Access-Control-Allow-Origin: http://siteA.com
Modern browsers will no...
Mercurial — revert back to old version and continue from there
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hg update [-r REV]
If later you commit, you will effectively create a new branch. Then you might continue working only on this branch or eventually merge the existing one into it.
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Why does the Scala compiler disallow overloaded methods with default arguments?
... naming-scheme for the
generated methods which return default arguments. If you write
def f(a: Int = 1)
the compiler generates
def f$default$1 = 1
If you have two overloads with defaults on the same parameter
position, we would need a different naming scheme. But we want to k...
How to insert an element after another element in JavaScript without using a library?
...Sibling);
Where referenceNode is the node you want to put newNode after. If referenceNode is the last child within its parent element, that's fine, because referenceNode.nextSibling will be null and insertBefore handles that case by adding to the end of the list.
So:
function insertAfter(newNode...
Do event handlers stop garbage collection from occurring?
If I have the following code:
4 Answers
4
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How to list files in an android directory?
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In order to access the files, the permissions must be given in the manifest file.
<uses-permission android:name="android.permission.READ_EXTERNAL_STORAGE" />
Try this:
String path = Environment.getExternalStorageDirectory().toString()+"/Pictures";
Log.d("Files", "Path: " + path);
File...