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What does a tilde do when it precedes an expression?
...rator that flips all bits in its operand.
For example, if your number was 1, its binary representation of the IEEE 754 float (how JavaScript treats numbers) would be...
0011 1111 1111 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000 0000
So ~ converts its operand to a 32 bit integer (...
python pandas dataframe to dictionary
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Remove an item from a dictionary when its key is unknown
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Python matplotlib multiple bars
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import matplotlib.pyplot as plt
from matplotlib.dates import date2num
import datetime
x = [
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Using module 'subprocess' with timeout
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In Python 3.3+:
from subprocess import STDOUT, check_output
output = check_output(cmd, stder...
Difference between Pragma and Cache-Control headers?
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Pragma is the HTTP/1.0 implementation and cache-control is the HTTP/1.1 implementation of the ...
Remove duplicate values from JS array [duplicate]
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WARN Could not determine content-length of response body. Set content-length of the response or set
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This is a problem of Webrick.
you can use "Thin" instead.
Add this to Gemfile
gem 'thin'
t...
How do you make a HTTP request with C++?
...contents of a page (an API) and check the contents to see if it contains a 1 or a 0. Is it also possible to download the contents into a string?
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What happens if I define a 0-size array in C/C++?
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An array cannot have zero size.
ISO 9899:2011 6.7.6.2:
If the expression is a constant expression, it shall have a value greater than zero.
The above text is true both for a plain array (paragraph 1). For a VLA (variable length array), the behavior is undefined ...