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How can I listen to the form submit event in javascript?
...n(){ /*...*/ };
Very straightforward, where $scope is the scope provided by the framework inside your controller. Reference
React
<form onSubmit={this.handleSubmit}>
class YourComponent extends Component {
// stuff
handleSubmit(event) {
// do whatever you need here
...
Why do we not have a virtual constructor in C++?
...
"Advanced C++" by James Coplien talks about how to implement virtual constructors in C++ (e.g., new animal("dog")). See users.rcn.com/jcoplien/Patterns/C++Idioms/… for some more information on how it's implemented
–...
Disable building workspace process in Eclipse
... and cancel.
When a build is cancelled, it typically handles this by discarding incremental build state and letting the next build be a full rebuild. This can be quite expensive in some projects.
As a user I think I would rather wait for the 5 second incremental build to finish rather tha...
What are the mechanics of short string optimization in libc++?
...bit goes to the long/short flag.
7 bits goes to the size.
Assuming char, 1 byte goes to the trailing null (libc++ will always store a trailing null behind the data).
This leaves 3 words minus 2 bytes to store a short string (i.e. largest capacity() without an allocation).
On a 32 bit machine, 10 ...
What resources are shared between threads?
...om section 2.2.2 The Classical Thread Model in Modern Operating Systems 3e by Tanenbaum:
The process model is based on two independent concepts: resource
grouping and execution. Sometimes it is useful to separate them;
this is where threads come in....
He continues:
One way of looki...
Performance surprise with “as” and nullable types
...rison. I still think the JIT code for the nullable case could be optimised by the JIT a lot more heavily than it is though.
– Jon Skeet
Jun 19 '10 at 18:21
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How can I get zoom functionality for images?
...same as
ImageView. Example:
TouchImageView img = (TouchImageView) findViewById(R.id.img);
If you are using TouchImageView in xml, then you must provide the full package
name, because it is a custom view. Example:
<com.example.touch.TouchImageView
android:id="@+id/img”
android:layout...
When is the init() function run?
...le files, they will be executed in lexical file name order (as pointed out by @benc):
It seems that init() functions are executed in lexical file name order. The Go spec says "build systems are encouraged to present multiple files belonging to the same package in lexical file name order to a com...
How to initialise memory with new operator in C++?
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It's a surprisingly little-known feature of C++ (as evidenced by the fact that no-one has given this as an answer yet), but it actually has special syntax for value-initializing an array:
new int[10]();
Note that you must use the empty parentheses — you cannot, for example, use (0) o...
How to escape special characters in building a JSON string?
...ting it slightly; it doesn't mean that any character can be escaped simply by putting a backslash in front of it. A fuller quote is "Any character may be escaped. If the character is in the Basic Multilingual Plane (U+0000 through U+FFFF), then it may be represented as a six-character sequence. ......