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How to serialize a TimeSpan to XML
...[XmlElement(DataType="duration", ElementName="TimeSinceLastEvent")]
public string TimeSinceLastEventString
{
get
{
return XmlConvert.ToString(TimeSinceLastEvent);
}
set
{
TimeSinceLastEvent = string.IsNullOrEmpty(value) ?
TimeSpan.Zero : XmlConver...
How to round a number to significant figures in Python
...
%g in string formatting will format a float rounded to some number of significant figures. It will sometimes use 'e' scientific notation, so convert the rounded string back to a float then through %s string formatting.
>>&g...
What's the canonical way to check for type in Python?
...you're using Python 2, you may actually want to use:
if isinstance(o, basestring):
because this will also catch Unicode strings (unicode is not a subclass of str; both str and unicode are subclasses of basestring). Note that basestring no longer exists in Python 3, where there's a strict separati...
Using numpy to build an array of all combinations of two arrays
...
There is bug in this implementation. For arrays of strings for example: arrays[0].dtype = "|S3" and arrays[1].dtype = "|S5". So there is a need in finding the longest string in input and use its type in out = np.zeros([n, len(arrays)], dtype=dtype)
– nor...
Speed comparison with Project Euler: C vs Python vs Erlang vs Haskell
...s changes the time to 8.5 seconds.
factorCount' is constantly applying two extra arguments that never change (number, sqrt). A worker/wrapper transformation gives us:
$ time ./so
842161320
real 0m7.954s
user 0m7.944s
sys 0m0.004s
That's right, 7.95 seconds. Consistently...
Replace multiple strings with multiple other strings
I'm trying to replace multiple words in a string with multiple other words. The string is "I have a cat, a dog, and a goat."
...
Why does using an Underscore character in a LIKE filter give me all the results?
...abc', 'aabc', 'xyzabc' and so on, but no 'xyzabcd', 'xabcdd' and any other string that does not end with 'abc'.
In your case you have searched by '%_%'. This will give all the rows with that column having one or more characters, that means any characters, as its value. This is why you are getting a...
How can I pass data from Flask to JavaScript in a template?
...ask provides a Jinja filter for this: tojson dumps the structure to a JSON string and marks it safe so that Jinja does not autoescape it.
<html>
<head>
<script>
var myGeocode = {{ geocode|tojson }};
</script>
</head>
<body>
<p>Hello ...
How to efficiently count the number of keys/properties of an object in JavaScript?
...).length worked best for me, because my return object is sometimes a plain string with no properties within it. _.size(obj) gives me back the length of the string, while _.keys(obj).length returns 0.
– Jacob Stamm
Nov 23 '15 at 23:02
...
How do you Encrypt and Decrypt a PHP String?
...strlen() and mb_substr(), using the '8bit' character set mode to prevent mbstring.func_overload issues.
IVs should be generating using a CSPRNG; If you're using mcrypt_create_iv(), DO NOT USE MCRYPT_RAND!
Also check out random_compat.
Unless you're using an AEAD construct, ALWAYS encrypt then MAC...