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How to compare two NSDates: Which is more recent?
...ying to achieve a dropBox sync and need to compare the dates of two files. One is on my dropBox account and one is on my iPhone.
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What is the main difference between Inheritance and Polymorphism?
...iece of mind. I know there are a number of similar questions to this but, none I have seen which provide a definitive answer.
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Clear file cache to repeat performance testing
... spread across 30 files in 10 subdirectories, you must open each and every one separately to make sure you read the actual disk instead of the cache?
– Synetech
Dec 1 '13 at 0:51
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Android: View.setID(int id) programmatically - how to avoid ID conflicts?
...ake any guarantees then as to which view is returned if there's more than one with the same ID? The docs don't mention anything.
– Matthias
May 3 '12 at 10:04
26
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JavaScript - get the first day of the week from current date
... 0=Sunday, 1=Monday, etc).
You can then subtract that number of days plus one, for example:
function getMonday(d) {
d = new Date(d);
var day = d.getDay(),
diff = d.getDate() - day + (day == 0 ? -6:1); // adjust when day is sunday
return new Date(d.setDate(diff));
}
getMonday(new Date(...
Pass Method as Parameter using C#
...
It's very userfully. With this way, can use one or many parameters. I guess, the most updated answer is this.
– bafsar
Jan 23 '15 at 16:53
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Convert to binary and keep leading zeros in Python
...ry nice. I never would have known that's what you meant from explanation alone. But now I've seen your example, I'll probably never forget it. Cheers.
– voices
May 11 '19 at 20:04
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Loop through an array of strings in Bash?
...
do
echo "$i"
# or do whatever with individual element of the array
done
# You can access them using echo "${arr[0]}", "${arr[1]}" also
Also works for multi-line array declaration
declare -a arr=("element1"
"element2" "element3"
"element4"
)...
iOS - Dismiss keyboard when touching outside of UITextField
...
So without having to define any methods, a one-liner would be: [self.view addGestureRecognizer:[[UITapGestureRecognizer alloc] initWithTarget:self.view action:@selector(endEditing:)]];
– Subhas
Aug 11 '14 at 7:11
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Look up all descendants of a class in Ruby
...= 3, you have two options in place. Use .descendants if you want more than one level depth of children classes, or use .subclasses for the first level of child classes.
Example:
class Animal
end
class Mammal < Animal
end
class Dog < Mammal
end
class Fish < Animal
end
Animal.subclasse...