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Finding the average of a list
...arUser then you should calc k = 1.0/len(l), and then reduce: reduce(lambda x, y: x + y * k, l)
– Arseniy
May 14 '14 at 5:09
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show 6 more co...
JavaScript exponents
How do you do exponents in JavaScript?
5 Answers
5
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Getting visitors country from their IP
..."];
if ($deep_detect) {
if (filter_var(@$_SERVER['HTTP_X_FORWARDED_FOR'], FILTER_VALIDATE_IP))
$ip = $_SERVER['HTTP_X_FORWARDED_FOR'];
if (filter_var(@$_SERVER['HTTP_CLIENT_IP'], FILTER_VALIDATE_IP))
$ip = $_SERVER['HTTP_CLIENT_IP'];
...
What is the purpose of wrapping whole Javascript files in anonymous functions like “(function(){ … }
... definition. The technical name for it is an Immediately Invoked Function Expression (IIFE). jQuery plugins are usually written like this.
In Javascript, you can nest functions. So, the following is legal:
function outerFunction() {
function innerFunction() {
// code
}
}
Now you can ...
Entity Framework: table without primary key
I have an existing DB with which I would like to build a new app using EF4.0
18 Answers
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Convert character to ASCII code in JavaScript
... unlike String.fromCharCode( asciiNumVal ), stringInstance.charCodeAt( index ) is not a static method of class String
– bobobobo
Sep 12 '12 at 19:09
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Python integer incrementing with ++ [duplicate]
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I think that @Thomas's explanation is more useful here; I think the question is more of why and not what.
– rickcnagy
Apr 7 '14 at 21:43
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How to do a scatter plot with empty circles in Python?
...
Try the following:
import matplotlib.pyplot as plt
import numpy as np
x = np.random.randn(60)
y = np.random.randn(60)
plt.scatter(x, y, s=80, facecolors='none', edgecolors='r')
plt.show()
Note: For other types of plots see this post on the use of markeredgecolor and markerfacecolor.
...
what does the __file__ variable mean/do?
...functions to find the directory that the file is located in.
Taking your examples one at a time:
A = os.path.join(os.path.dirname(__file__), '..')
# A is the parent directory of the directory where program resides.
B = os.path.dirname(os.path.realpath(__file__))
# B is the canonicalised (?) direc...
Is it pythonic to import inside functions?
... your module is by what it needs to import.
If I'm adding new code to an existing file I'll usually do the import where it's needed and then if the code stays I'll make things more permanent by moving the import line to the top of the file.
One other point, I prefer to get an ImportError exception...