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Generate JSON string from NSDictionary in iOS
...ions:(NSJSONWritingOptions) (prettyPrint ? NSJSONWritingPrettyPrinted : 0)
error:&error];
if (! jsonData) {
NSLog(@"%s: error: %@", __func__, error.localizedDescription);
return @"{}";
} else {
return [[NS...
std::string to char*
...
700
It won't automatically convert (thank god). You'll have to use the method c_str() to get the C ...
MySQL, better to insert NULL or empty string?
...re differences:
A LENGTH of NULL is NULL, a LENGTH of an empty string is 0.
NULLs are sorted before the empty strings.
COUNT(message) will count empty strings but not NULLs
You can search for an empty string using a bound variable but not for a NULL. This query:
SELECT *
FROM mytable
WHERE ...
How to pass parameters to the DbContext.Database.ExecuteSqlCommand method?
...
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edited Apr 30 '15 at 19:31
tomexou
33322 silver badges55 bronze badges
answered May 20 '11...
Receive JSON POST with PHP
...
501
Try;
$data = json_decode(file_get_contents('php://input'), true);
print_r($data);
echo $data["...
Convert PHP closing tag into comment
... you.
– v1n_vampire
Mar 5 '13 at 9:30
1
I had to use this trick in C 2 days ago for a string cont...
Why does this iterative list-growing code give IndexError: list assignment index out of range?
...
j is an empty list, but you're attempting to write to element [0] in the first iteration, which doesn't exist yet.
Try the following instead, to add a new element to the end of the list:
for l in i:
j.append(l)
Of course, you'd never do this in practice if all you wanted to do wa...
How do I look inside a Python object?
...
360
Python has a strong set of introspection features.
Take a look at the following built-in funct...
Getting all types that implement an interface
... reflection, how can I get all types that implement an interface with C# 3.0/.NET 3.5 with the least code, and minimizing iterations?
...
Swift days between two NSDates
...onsider the time difference as well. For example if you compare the dates 2015-01-01 10:00 and 2015-01-02 09:00, days between those dates will return as 0 (zero) since the difference between those dates is less than 24 hours (it's 23 hours).
If your purpose is to get the exact day number between tw...