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Using print statements only to debug
...le log methods, debug, info, warning, error and critical.
import logging, sys
logging.basicConfig(stream=sys.stderr, level=logging.DEBUG)
logging.debug('A debug message!')
logging.info('We processed %d records', len(processed_records))
...
Why covariance and contravariance do not support value type
...ntational forms, "boxed" and "unboxed". The compiler has to insert code to convert from one form to the other, even though this is normally invisible at a source code level. In effect, only the "boxed" form is considered by the underlying system to be a subtype of object, but the compiler automatica...
How to check if an object is nullable?
...se I got a boxed Nullable<T> but because I was writing a generic WPF converter base class and some properties are nullable, so I used Nullable.GetUnderlyingType to detect that case and Activator.CreateInstance to make a boxed nullable, (Convert.ChangeType doesn't handle nullables btw).
...
Accessing members of items in a JSONArray with Java
... put("b", 400);
}}
)));
//Then: convert to List<JSONObject>
List<JSONObject> jsonItems = IntStream.range(0, jsonArray.length())
.mapToObj(index -> (JSONObject) jsonArray.get(index))
.collect(Collectors.toList());
...
Show the progress of a Python multiprocessing pool imap_unordered call?
...vate 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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...
Use latest version of Internet Explorer in the webbrowser control
...ss Not found");
return;
}
string FindAppkey = Convert.ToString(Regkey.GetValue(appName));
// Check if key is already present
if (FindAppkey == "8000")
{
MessageBox.Show("Required Application Settings Present");
Regkey.Clos...
How do you simulate Mouse Click in C#?
...= Cursor.Position.Y;
//move to coordinates
pt = (Point)pc.ConvertFromString(X + "," + Y);
Cursor.Position = pt;
//perform click
mouse_event(MOUSEEVENTF_LEFTDOWN, 0, 0, 0, 0);
mouse_event(MOUSEEVENTF_LEFTUP, 0, 0, 0, 0);
}
I o...
Java dynamic array sizes?
...ents ; i++ ) {
list.add( new xClass() );
}
// convert it to array
xClass [] array = list.toArray( new xClass[ list.size() ] );
System.out.println( "size of array = " + array.length );
}
}
class xClass {}
...
How to call C from Swift?
...wn .h header file) should contain pure Objective-C code, so you'll have to convert C++ types to Objective-C types in the implementation, to expose them to Swift. Then you can import that header with an objective-c bridging header.
– William T Froggard
Dec 6 '16...
Why does PHP consider 0 to be equal to a string?
...a string or the comparison involves numerical strings, then each string is converted to a number and the comparison performed numerically. […] The type conversion does not take place when the comparison is === or !== as this involves comparing the type as well as the value.
As the first operand ...