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Delete/Reset all entries in Core Data?
...NSEntityDescription entityForName:entityDescription inManagedObjectContext:_managedObjectContext];
[fetchRequest setEntity:entity];
NSError *error;
NSArray *items = [_managedObjectContext executeFetchRequest:fetchRequest error:&error];
[fetchRequest release];
for (NSManage...
Importing variables from another file?
...
Did you have a __init__.py file? See here for more details.
– J0ANMM
Sep 28 '16 at 7:21
...
`from … import` vs `import .` [duplicate]
... for simplicity or to avoid masking built ins:
from os import open as open_
# lets you use os.open without destroying the
# built in open() which returns file handles.
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How to safely call an async method in C# without await
...it completes, then you can do this:
public string GetStringData()
{
var _ = MyAsyncMethod();
return "hello world";
}
BTW, this is not a "common problem". It's very rare to want to execute some code and not care whether it completes and not care whether it completes successfully.
Update:
Sin...
Better way to sum a property value in an array
...y.prototype.sum = function (prop) {
var total = 0
for ( var i = 0, _len = this.length; i < _len; i++ ) {
total += this[i][prop]
}
return total
}
console.log(traveler.sum("Amount"))
The Fiddle: http://jsfiddle.net/9BAmj/
...
How to write log to file
...the past, but this works for me:
f, err := os.OpenFile("testlogfile", os.O_RDWR | os.O_CREATE | os.O_APPEND, 0666)
if err != nil {
log.Fatalf("error opening file: %v", err)
}
defer f.Close()
log.SetOutput(f)
log.Println("This is a test log entry")
Based on the Go docs, os.Open() can't work f...
How do I calculate tables size in Oracle
...ave googled it so I'm now aware that I may not have as easy an option as sp_spaceused. Still the potential answers I got are most of the time outdated or don't work. Probably because I'm no DBA on the schema I'm working with.
...
How do I remove code duplication between similar const and non-const member functions?
...& get() const {
return c;
}
char & get() {
return const_cast<char &>(static_cast<const C &>(*this).get());
}
char c;
};
The two casts and function call may be ugly but it's correct. Meyers has a thorough explanation why.
...
How to use a class from one C# project with another C# project
...de import functionA
functionA()
class ClassName(object):
def __init__(object, parameter):
object.parameter = value
The library file or "façade" file containing classes, methods or functions you want to import.
class class1(object):
"""description of class"""
class Cla...
How to mock ConfigurationManager.AppSettings with moq
...
}
public class ClassUnderTest
{
private readonly NameValueCollection _settings;
public ClassUnderTest(NameValueCollection settings)
{
_settings = settings;
}
public void MethodUnderTest()
{
// get the User from Settings
string user = _settings["Use...