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Get hostname of current request in node.js Express
...the hostname that a request object I'm sending a response to was requested from.
5 Answers
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How do I get python's pprint to return a string instead of printing?
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The pprint module has a command named pformat, for just that purpose.
From the documentation:
Return the formatted representation of object as a string. indent,
width and depth will be passed to the PrettyPrinter constructor as
formatting parameters.
Example:
>>> import ppri...
ngClass style with dash in key
...g-class="{'icon-white': someBooleanValue}">
I hope this helps someone from tearing their hair out.
UPDATE:
In older versions of Angular, using a backslash also does the trick, but not in the newer versions.
<i class="icon-home" ng-class="{icon\-white: someBooleanValue}">
The former i...
Which is faster: while(1) or while(2)?
...? Or is this a clue that I'm reading generated code? Is it a bug resulting from an ill-advised find-and-replace-all, or a bad merge, or a cosmic ray? Maybe this line of code is supposed to do something dramatically different. Maybe it was supposed to read while(w) or while(x2). I'd better find the a...
How to get an array of specific “key” in multidimensional array without looping
Let's assume I have the following multidimensional array (retrieved from MySQL or a service):
4 Answers
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Get type of all variables
...und trip casts/coercions that occur when assigning and reading data to and from disk.
Ideology around R's triad typing system:
R's duck typing system has uncertainty in it. As an analogy, consider a ceramic cup, it can be used to hold a liquid, or used as a projectile like a baseball. The purpos...
How to check if array element exists or not in javascript?
...ood of JS
Thus, they have the prototype method hasOwnProperty "inherited" from Object
in my testing, hasOwnProperty can check if anything exists at an array index.
So, as long as the above is true, you can simply:
const arrayHasIndex = (array, index) => Array.isArray(array) && array.h...
Matplotlib scatterplot; colour as a function of a third variable
...sed the y position of the point as the value that determines the color:
from matplotlib import pyplot as plt
x = [1, 2, 3, 4, 5, 6, 7, 8, 9]
y = [125, 32, 54, 253, 67, 87, 233, 56, 67]
color = [str(item/255.) for item in y]
plt.scatter(x, y, s=500, c=color)
plt.show()
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Is it possible to override the configuration of a plugin already defined for a profile in a parent P
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Overriding configurations from a parent pom can be done by adding the combine.self="override" attribute to the element in your pom.
Try changing your plugin configuration to:
<plugin>
<groupId>org.apache.maven.plugins</group...
Count how many records are in a CSV Python?
..."# {funcname}")
t = timeit.timeit(f'{funcname}("{filename}")', setup=f'from __main__ import {funcname}', number = 100) / 100
print('Elapsed time : ', t)
print('n = ', func(filename))
print('\n')
def sum1forline(filename):
with open(filename) as f:
return sum(1 for line i...