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Is 'switch' faster than 'if'?
...gh, as it only works when the input can be bounded some way.
C Pseudocode for a "jump table" would be something like this -- note that the compiler in practice would need to insert some form of if test around the table to ensure that the input was valid in the table. Note also that it only works in...
Show the progress of a Python multiprocessing pool imap_unordered call?
...attributes of the result set:
from __future__ import division
import sys
for i, _ in enumerate(p.imap_unordered(do_work, xrange(num_tasks)), 1):
sys.stderr.write('\rdone {0:%}'.format(i/num_tasks))
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Which $_SERVER variables are safe?
...ariable that a user can control, an attacker can also control and is therefore a source of an attack. This is called a "tainted" variable, and is unsafe.
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Why does Go have a “goto” statement
...always been taught that 'goto' statements are a thing of the past and evil for it occludes the actual flow of a program, and that functions or methods are always a better way of controlling flow.
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How to plot two columns of a pandas data frame using points?
...like to plot values from one column versus the values from another column. Fortunately, there is plot method associated with the data-frames that seems to do what I need:
...
How to split a string literal across multiple lines in C / Objective-C?
... Line2";
Better approach
There's a better approach that works just for strings.
Plain C:
char *my_string = "Line 1 "
"Line 2";
Objective-C:
NSString *my_string = @"Line1 "
"Line2"; // the second @ is optional
The second approach is better, b...
How to toggle a value in Python
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Perfect! p doesn't need to be referenced twice for this method to work!! Idea if you are toggling a value with a long long reference.
– ThorSummoner
Dec 12 '14 at 7:16
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Django - filtering on foreign key properties
...to filter a table in Django based on the value of a particular field of a ForeignKey .
3 Answers
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Failed to execute 'btoa' on 'Window': The string to be encoded contains characters outside of the La
...OPQRSTUVWXYZabcdefghijklmnopqrstuvwxyz0123456789+/="
// public method for encoding
, encode: function (input)
{
var output = "";
var chr1, chr2, chr3, enc1, enc2, enc3, enc4;
var i = 0;
input = Base64._utf8_encode(input);
while (i < input.len...
How to read a (static) file from inside a Python package?
...t recommended anymore because the new method:
it is significantly more performant;
is is safer since the use of packages (instead of path-stings) raises compile-time errors;
it is more intuitive because you don't have to "join" paths;
it is faster when developing since you don't need an extra depen...