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How to serve an image using nodejs
I have a logo that is residing at the public/images/logo.gif . Here is my nodejs code.
11 Answers
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Read input from console in Ruby?
...ernel.gets tries to read the params found in ARGV and only asks to console if not ARGV found. To force to read from console even if ARGV is not empty use STDIN.gets
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How to convert strings into integers in Python?
...mber converted to an integer:
print (int("1") + 1)
The above prints 2.
If you know the structure of your list, T1 (that it simply contains lists, only one level), you could do this in Python 2:
T2 = [map(int, x) for x in T1]
In Python 3:
T2 = [list(map(int, x)) for x in T1]
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How do I make XAML DataGridColumns fill the entire DataGrid?
...in XAML (not Silverlight) with resizable columns, the DataGrid will expand if the user resizes the screen.
10 Answers
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Delete everything in a MongoDB database
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Use with caution: if you're in a sharded environment using wiredTiger and you have no user database and you invoke dropDatabase, the database will be deleted and could re-appear as primary on a different shard when new records are added.
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close vs shutdown socket?
In C, I understood that if we close a socket, it means the socket will be destroyed and can be re-used later.
9 Answers
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switch() statement usage
...Well, timing to the rescue again. It seems switch is generally faster than if statements.
So that, and the fact that the code is shorter/neater with a switch statement leans in favor of switch:
# Simplified to only measure the overhead of switch vs if
test1 <- function(type) {
switch(type,
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Get a random boolean in python?
...ite fast, but I found that random.getrandbits(1) to be quite a lot faster. If you really want a boolean instead of a long then
bool(random.getrandbits(1))
is still about twice as fast as random.choice([True, False])
Both solutions need to import random
If utmost speed isn't to priority then ran...
How to get the seconds since epoch from the time + date output of gmtime()?
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If you got here because a search engine told you this is how to get the Unix timestamp, stop reading this answer. Scroll down one.
If you want to reverse time.gmtime(), you want calendar.timegm().
>>> calendar.time...
Declaring Multiple Variables in JavaScript
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If you're writing code that you expect to minify or pack later, the second way allows compressors (like the YUI Compressor) to give you a more minified version. If size is a consideration, then I would suggest following as m...