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When should I use RequestFactory vs GWT-RPC?
...fference between GWT RPC and RequestFactory is that the RPC system is "RPC-by-concrete-type" while RequestFactory is "RPC-by-interface".
RPC is more convenient to get started with, because you write fewer lines of code and use the same class on both the client and the server. You might create a Pe...
Passing Parameters JavaFX FXML
...y From the Caller to the Controller
Pass custom data to an FXML controller by retrieving the controller from the FXML loader instance and calling a method on the controller to initialize it with the required data values.
Something like the following code:
public Stage showCustomerDialog(Customer cus...
Using the star sign in grep
...* -- grep 'abc.*def' myFile will match a string that contains abc followed by def with something optionally in between.
Update based on a comment:
* in a regular expression is not exactly the same as * in the console. In the console, * is part of a glob construct, and just acts as a wildcard (for ...
Preventing form resubmission
... the location header field. The user agent (e.g. a web browser) is invited by a response with this code to make a second, otherwise identical, request to the new URL specified in the location field.
The redirect status code is to ensure that in this situation, the web user's browser can safely ref...
Git is ignoring files that aren't in gitignore
... Perfectly solved my problem. Some patterns are not easy to catch by eye!!
– Willa
Sep 15 '16 at 13:27
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Can you “compile” PHP code and upload a binary-ish file, which will just be run by the byte code int
I know that PHP is compiled to byte code before it is run on the server, and then that byte code can be cached so that the whole script doesn't have to be re-interpreted with every web access.
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What does “S3 methods” mean in R?
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Most of the relevant information can be found by looking at ?S3 or ?UseMethod, but in a nutshell:
S3 refers to a scheme of method dispatching. If you've used R for a while, you'll notice that there are print, predict and summary methods for a lot of different kinds of o...
Download single files from GitHub
...ke so
https://raw.githubusercontent.com/user/repository/branch/filename
By filling in the blanks in the URL, you can use Wget or cURL (with the -L option, see below) or whatever to download a single file. Again, you won't get any of the nice version control features used by Git by doing this.
Up...
Anatomy of a “Memory Leak”
...ect to its typical memory leaks, except that shared references are managed by the garbage collector. I could be wrong about this last point.
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How can I quantify difference between two images?
... images as arrays (scipy.misc.imread) and calculate an element-wise (pixel-by-pixel) difference. Calculate the norm of the difference.
Option 2: Load both images. Calculate some feature vector for each of them (like a histogram). Calculate distance between feature vectors rather than images.
Howev...