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What's the Best Way to Shuffle an NSMutableArray?
...o be flipped only if the result is the opposite of the side that was originally up?
– Kristopher Johnson
Oct 22 '12 at 17:00
...
Why is XOR the default way to combine hashes?
...tter than and and or, but that doesn't say much.
xor is symmetric, so the order of the elements is lost. So "bad" will hash combine the same as "dab".
xor maps pairwise identical values to zero, and you should avoid mapping "common" values to zero:
So (a,a) gets mapped to 0, and (b,b) also gets ...
When should use Readonly and Get only properties
...utside the class.
You can however change the value using methods provided by your class :
public class FuelConsumption {
private double fuel;
public double Fuel
{
get { return this.fuel; }
}
public void FillFuelTank(double amount)
{
this.fuel += amount;
...
How to remove a field from params[:something]
... = params.except[the one I wish to remove]
This is a safer way to 'grab' all the params you need into a copy WITHOUT destroying the original passed in params (which is NOT a good thing to do as it will make debugging and maintenance of your code very hard over time).
Or you could just pass direc...
Grep characters before and after match?
...
The awk version by @amit_g is much faster.
– ssobczak
Jul 4 '14 at 12:46
6
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How to install a specific version of a ruby gem?
Using the command-line gem tool, how can I install a specific version of a gem?
6 Answers
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How to check if a string is a valid date
...
Using a "catch-it-all" rescue should be considered an anti-pattern. It can hide out other errors which we don't expect and make the debugging of the code extremely difficult.
– yagooar
Jan 29 '13 at 10:32...
What are the “must have” jQuery plugins? [closed]
....startsWith("firstName","m")
.or("n")
.isNot("administrator")
.orderBy("lastName")
.select();
It supports a bunch of other commands that you find in LINQ for ordering and grouping along with most of the selection commands like contains, between, greaterThan, etc...
Here is a demo ...
Creating a UICollectionView programmatically
...wDataSource,UICollectionViewDelegateFlowLayout>
{
UICollectionView *_collectionView;
}
Implementation File:--
- (void)viewDidLoad
{
[super viewDidLoad];
self.view = [[UIView alloc] initWithFrame:[[UIScreen mainScreen] bounds]];
UICollectionViewFlowLayout *layout=[[UICollect...
AngularJS access scope from outside js function
... @MarcM. I think it has to do with Angular's scope recreation. By the time you're using the change function, the previous scope the global var was pointing to may no longer exist (due to the recreation).
– dk123
Dec 14 '13 at 3:43
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