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What does enumerate() mean?
...is produced with (counter, element); the for loop binds that to row_number and row, respectively.
Demo:
>>> elements = ('foo', 'bar', 'baz')
>>> for elem in elements:
... print elem
...
foo
bar
baz
>>> for count, elem in enumerate(elements):
... print count, ele...
MVC Vs n-tier architecture
...t exactly is the difference between MVC(which is an architectural pattern) and an n-tier architecture for an application. I searched for it but couldn't find a simple explanation. May be I am a bit naive on MVC concepts, so if anyone can explain the difference then it would be great.
...
How do I specify new lines on Python, when writing on files?
...e a single '\n' instead, on all platforms." So what do you mean by "right" and what are the reasons for their and your comment?
– Yasen
Nov 22 '14 at 18:41
22
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How do I determine the size of my array in C?
...ith the type, like this:
int a[17];
size_t n = sizeof(a) / sizeof(int);
and get the proper answer (68 / 4 = 17), but if the type of
a changed you would have a nasty bug if you forgot to change
the sizeof(int) as well.
So the preferred divisor is sizeof(a[0]) or the equivalent sizeof(*a), the siz...
Choose between ExecutorService's submit and ExecutorService's execute
...
There is a difference concerning exception/error handling.
A task queued with execute() that generates some Throwable will cause the UncaughtExceptionHandler for the Thread running the task to be invoked. The default UncaughtExceptionHandler, which typically prints the Thro...
Getting the count of unique values in a column in bash
...currence of the different values in a column for all the files in a folder and sort them in decreasing order of count (highest count first). How would I accomplish this in a Linux command line environment?
...
Optimum way to compare strings in JavaScript? [duplicate]
... Unfortunately, stringCompare is not reliable. Opera, IE, Firefox, Chrome and Safari all return 1 for 'dog'.localeCompare('cat'), which is to be expected, and -1 when you reverse the caller and the argument. BUt capital letters behave oddly- 'dog'.localeCompare('Dog') Of the browsers I tested,...
Pseudo-terminal will not be allocated because stdin is not a terminal
...g to write a shell script that creates some directories on a remote server and then uses scp to copy files from my local machine onto the remote. Here's what I have so far:
...
jquery input select all on focus
I'm using this code to try and select all of the text in the field when a user focuses on the field. What happens is, it selects all for a second, then its unselected and the typing cursor is left where I clicked...
...
How to print a dictionary's key?
...You have the keys() method, which gives you a python list of all the keys, and you have the iteritems() method, which returns key-value pairs, so
for key, value in mydic.iteritems() :
print key, value
Python 3 version:
for key, value in mydic.items() :
print (key, value)
So you have a ...