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Please explain the exec() function and its family
...lementations, but the idea is to create as close a copy as possible). Only one process calls fork() but two processes return from that call - sounds bizarre but it's really quite elegant
The new process (called the child) gets a different process ID (PID) and has the PID of the old process (the pare...
Python concatenate text files
...le:
outfile.write(infile.read())
… and another interesting one that I thought of:
filenames = ['file1.txt', 'file2.txt', ...]
with open('path/to/output/file', 'w') as outfile:
for line in itertools.chain.from_iterable(itertools.imap(open, filnames)):
outfile.write(line)
...
get keys of json-object in JavaScript [duplicate]
...o support IE8 or earlier (!), and B) If you did, you wouldn't do it with a one-off you wrote yourself or grabbed from an SO answer (and probably shouldn't have in 2011, either). You'd use a curated polyfill, possibly from es5-shim or via a transpiler like Babel that can be configured to include poly...
Heap vs Binary Search Tree (BST)
...update it whenever that element could be changed: on insertion of a larger one swap, on removal find the second largest. Can we use binary search tree to simulate heap operation? (mentioned by Yeo).
Actually, this is a limitation of heaps compared to BSTs: the only efficient search is that for the ...
What is the difference between a stored procedure and a view?
...o if you have two tables that you find you have to join a lot to get work done, you can create a view to work against so you don't have to join them all of the time.
– Patrick
Mar 4 '11 at 14:33
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How to watch for array changes?
...ds appealing, just replace myArray with Array.prototype.
Now, that's just one method and there are lots of ways to change array content. We probably need something more comprehensive...
2. Create a custom observable array
Rather than overriding methods, you could create your own observable array....
When should I use the new keyword in C++?
...ou shouldn't return a pointer to an object on the stack)
As far as which one to use; you choose the method that works best for you, given the above constraints.
Some easy cases:
If you don't want to worry about calling delete, (and the potential to cause memory leaks) you shouldn't use new.
I...
Is it possible to update a localized storyboard's strings?
... For me Option 1 replaced all already translated strings with English ones. I had to add the translation once again.
– Mihail Velikov
Mar 4 '15 at 9:24
5
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Html List tag not working in android textview. what can i do?
...extured weave of stripes that resembles twill. Take a closer look at this one.<ul><li>Trim, tailored fit for a bespoke feel</li><li>Medium spread collar, one-button mitered barrel cuffs</li><li>Applied placket with genuine mother-of-pearl buttons</li><li...
Why extend the Android Application class?
...
There are many uses of extending application class. One very useful is to catch all uncaught exceptions in you application. SO this is something which can be very handy
– png
Jun 18 '14 at 9:56
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