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Regular expression for floating point numbers
...r certainly takes care of 0.24 and 2.2 and correctly disallows 4.2.44 All tested with regex101.com However, it disallows 123. which as you say may be acceptable (and I think it is!). I can fix this by changing your expression to [-+]?(\d*[.])?\d* (notice * at end instead of +) but then crazy thing...
JSON and XML comparison [closed]
...t may present an additional overhead over XML in such cases.
Anyway, only testing will provides the answer for your particular use‑case (if speed is really the only matter, and not standard nor safety nor integrity…).
Update 1: worth to mention, is EXI, the binary XML format, which offers comp...
How do I print bold text in Python?
...inal import render
print render('%(BG_YELLOW)s%(RED)s%(BOLD)sHey this is a test%(NORMAL)s')
print render('%(BG_GREEN)s%(RED)s%(UNDERLINE)sAnother test%(NORMAL)s')
UPDATED:
I wrote a simple module named colors.py to make this a little more pythonic:
import colors
with colors.pretty_output(colors...
How to remove all line breaks from a string
...plest solution would be:
let str = '\t\n\r this \n \t \r is \r a \n test \t \r \n';
str.replace(/\s+/g, ' ').trim();
console.log(str); // logs: "this is a test"
.replace() with /\s+/g regexp is changing all groups of white-spaces characters to a single space in the whole string then we .tr...
How to list all installed packages and their versions in Python?
...
WOW: Just looked into documentation of latest version of pip and seems like they have added pip list: pip-installer.org/en/latest/usage.html#pip-list - so this is actually something that is coming already!
– jsalonen
Feb 9 '13 ...
How to get current CPU and RAM usage in Python?
...s more concepts and interest concepts:
https://psutil.readthedocs.io/en/latest/
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Expand Python Search Path to Other Source
...ample:
PYTHONPATH=$PYTHONPATH:$HOME/adaifotis/project
In addition to testing your PYTHONPATH environment variable, as David explains, you can test it in python like this:
$ python
>>> import project # should work if PYTHONPATH set
>>> import sys
>>...
What are the disadvantages of using persistent connection in PDO
...
On my tests I had a connection time of over a second to my localhost, thus assuming I should use a persistent connection. Further tests showed it was a problem with 'localhost':
Test results in seconds (measured by php microtime):...
Better way to cast object to int
...
Use Int32.TryParse as follows.
int test;
bool result = Int32.TryParse(value, out test);
if (result)
{
Console.WriteLine("Sucess");
}
else
{
if (value == null) value = "";
Console.WriteLine("Failure");
}
...
Does Internet Explorer 8 support HTML 5?
... var div = document.createElement('div'); div.innerHTML = '<section>test</section>'; We end up with div.childNodes.length = 2. I ran into the problem using jQuery and have been trying to figure out what's going on in IE.
– Nick Spacek
Feb 23 '10 a...