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NSUserDefaults removeObjectForKey vs. setObject:nil
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Swift 3.0
The below answer is no longer the case when I tested this.
When set to nil the result is NSCFData being stored. Possibly an NSNull object reference, but I am not positive.
To completely remove a value for a key use UserDefaults.standard.removeObject(forKey: "YourDefaul...
Django filter queryset __in for *every* item in list
...ries.
You also have the option of using custom queries.
Some examples
Test setup:
class Photo(models.Model):
tags = models.ManyToManyField('Tag')
class Tag(models.Model):
name = models.CharField(max_length=50)
def __unicode__(self):
return self.name
In [2]: t1 = Tag.obje...
Pass all variables from one shell script to another?
Lets say I have a shell / bash script named test.sh with:
7 Answers
7
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MySQL - force not to use cache for testing speed of query
I'm testing the speed of some queries in MySQL. The database is caching these queries making it difficult for me to get reliable results when testing how fast these queries are.
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Most simple but complete CMake example
...ECURSE sources src/main/*.cpp src/main/*.h)
file(GLOB_RECURSE sources_test src/test/*.cpp)
file(GLOB_RECURSE data resources/*)
# you can use set(sources src/main.cpp) etc if you don't want to
# use globing to find files automatically
############################################################...
How to test if a string is basically an integer in quotes using Ruby
... to see the syntax, changed the regex to apply to the problem at hand, and tested it. It's pretty neat actually .. I may have to give it a longer look when I have more spare time.
– Rado
Aug 5 '09 at 22:21
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In a PHP project, what patterns exist to store, access and organize helper objects? [closed]
...easons to avoid this approach. It violates good OOP principles. The google testing blog has some good articles on the Singleton and how to avoid it:
http://googletesting.blogspot.com/2008/08/by-miko-hevery-so-you-join-new-project.html
http://googletesting.blogspot.com/2008/05/tott-using-dependancy-...
release Selenium chromedriver.exe from memory
...orkplace, we've noticed a huge problem when trying to execute chromedriver tests in the Java platform, where the chromedriver.exe actually still exists even after using browser.quit(). To counter this, we created a batch file similar to this one below, that just forces closed the processes.
kill_c...
Why does javascript map function return undefined?
...an implement like a below logic.
Suppose you want an array of values.
let test = [ {name:'test',lastname:'kumar',age:30},
{name:'test',lastname:'kumar',age:30},
{name:'test3',lastname:'kumar',age:47},
{name:'test',lastname:'kumar',age:28},
{name:'...
How do I copy to the clipboard in JavaScript?
...ity prompts.
Text is read from the DOM and placed on the clipboard.
During testing ~April 2015 only Internet Explorer was noted as displaying permissions prompts whilst writing to the clipboard.
Overriding the copy event
See Clipboard API documentation on Overriding the copy event.
Allows you to ...