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Is a Python dictionary an example of a hash table?
...he hash is still a 19-digit number. I assume there is a limit on length of string you can hash in Python, but safe to say many more possible strings than possible values. And hash(False) = 0 by the way.
– Will Croxford
Jun 10 '19 at 21:49
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How to convert float to varchar in SQL Server
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you cannot get more digits by converting to string than there are digits stored in the original value.
– devio
Sep 15 '10 at 9:18
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How do I store data in local storage using Angularjs?
... straight to the DOM? Because I wanted to store objects rather than simple strings, I just used angular.toJson() in combination with setItem() and angular.fromJson() in combination with getItem(). Easy. Love it.
– Brett Donald
May 12 '16 at 1:16
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Is returning by rvalue reference more efficient?
...p;b) {
return std::move(a < b? a: b);
}
int main() {
const std::string s = min_(std::string("A"), std::string("B"));
fprintf(stderr, "min: %s\n", s.c_str());
return 0;
}
As an interesting observation, on my machine clang++ -O3 generates 54 instructions for code above versus 62 ins...
User Authentication in ASP.NET Web API
...from the beginning of your controller's methods.
void EnsureAuthenticated(string role)
{
string[] parts = UTF8Encoding.UTF8.GetString(Convert.FromBase64String(Request.Headers.Authorization.Parameter)).Split(':');
if (parts.Length != 2 || !Membership.ValidateUser(parts[0], parts[1]))
...
how to reset
... to see what jQuery is doing, just setting the value attribute to an empty string. So in "pure" JavaScript it would be:
document.getElementById("uploadCaptureInputFile").value = "";
share
|
improv...
mysqli or PDO - what are the pros and cons? [closed]
...ethod automatically adds the enclosing quotes, whereas mysqli::real_escape_string() (and similars) don't:
PDO::quote() places quotes around the input string (if required) and
escapes special characters within the input string, using a quoting
style appropriate to the underlying driver.
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How can I output UTF-8 from Perl?
...
FWIW here is the reason: strings that contains only latin1 (ISO-8859-1) characters, despite being stored more or less in utf8, will be output as latin1 by default. This way scripts from a pre-unicode era still work the same, even with a unicode-aware...
Relative imports in Python 2.7
...y shouldn't do this at all for single level packages.) If we wanted to be extra-clean, we might rewrite this as, e.g.:
import os, sys
_i = os.path.dirname(os.path.dirname(os.path.abspath(__file__)))
if _i not in sys.path:
sys.path.insert(0, _i)
else:
_i = None
f...
How to override the copy/deepcopy operations for a Python object?
...nd its copy.
obj is some object
shared_attribute_names: A list of strings identifying the attributes that
should be shared between the original and its copy.
memo is the dictionary passed into __deepcopy__. Ignore this argument if
not calling from within __deepcopy__.
...