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ReadOnlyCollection or IEnumerable for exposing member collections?
... an interface, perhaps because you want to mock the collection during unit testing. Please see my blog entry for adding your own interface to ReadonlyCollection by using an adapter.
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How do I handle the window close event in Tkinter?
...method
be the protocol method's second argument.
Here's a working example, tested on Windows 7 & 10:
# Python 3
import tkinter
import tkinter.scrolledtext as scrolledtext
root = tkinter.Tk()
# make the top right close button minimize (iconify) the main window
root.protocol("WM_DELETE_WINDOW", r...
GDB corrupted stack frame - How to debug?
...tf's on critical variables will lead to the necessary A ha!
Maybe changing test conditions with different inputs will provide more insight than debugging.
Maybe a second pair of eyes will force you to check your assumptions or gather overlooked evidence.
Sometimes, all it takes is going to dinner an...
Why use AJAX when WebSockets is available?
..., Vodafone Italy blocks WS on port 80, but allows WSS on port 443. You can test any carrier quite easily via our home page, which you can access in both HTTP and HTTPS. It tries WebSockets and falls back to HTTP if they are blocked. Use this URL to display a widget in the middle that reports the cu...
How can I dynamically create derived classes from a base class
...st like pickle does to ordinary objects, and had lived to it in some of my tests.
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What is the boundary in multipart/form-data?
...ide, it's consumed in @Consumes("multipart/form-data") form.
Beware, when testing your webservice using chrome postman, you need to check the form data option(radio button) and File menu from the dropdown box to send attachment. Explicit provision of content-type as multipart/form-data throws an er...
What are “Groovy” and “Grails” and what kinds of applications are built using them?
... a templating engine, or even an ORM layer. grails.github.io/grails-doc/latest/guide/single.html#profiles
– Luis Muñiz
Nov 19 '15 at 22:30
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Convert .pem to .crt and .key
...ust your public key, you can freely share this with 3rd parties.
You can test it all by just encrypting something yourself using your public key and then decrypting using your private key, first we need a bit of data to encrypt:
Example file :
echo 'too many secrets' > file.txt
You now have ...
Best way to get child nodes
... but which is the best? By best, I mean: most cross-browser compatible, fastest, most comprehensive and predictable when it comes to behaviour. A list of methods/properties I use as aliases:
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How to loop through file names returned by find?
... for i in *.txt; do does not work, if no files matching. One xtra test e.g. [[ -e $i ]] is needed
– Michael Brux
May 13 '16 at 7:20
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