You have to list multiple tuples at the top level:

    switch (indexPath.section, indexPath.row) {
        case (0, 1...5), (0, 8...10), (0, 30...33):
            println(&quot;in range&quot;)
        case (0, _):
            println(&quot;not at all&quot;)
        default:
            println(&quot;wrong section \(indexPath.section)&quot;)
    }

For 2 days now I&#39;m trying to solve this, but unfortunately no result. Let me tell you my story about the problem. I&#39;ve bulid an application on a site, and the application deals with the reviews. But, I&#39;m trying to put it on another site, and I copyed the php files, the sql file from the old site, and moved them to the new site (they are on different FTP servers). When I&#39;m trying to go to the pages from the application, I receive this FATAL ERROR:

&gt; Fatal error: Call to undefined function mysqli_connect()

The code that I wrote to connect to the database is this (with hidden credentials):

    $con = mysqli_connect(&quot;&quot;,&quot;*the_name*&quot;,&quot;*the_pass*&quot;,&quot;*the_database*&quot;);
	if (mysqli_connect_errno()) {
		echo &quot;Failed to connect to MySQL: &quot; . mysqli_connect_error();
	}

Why do I get the error? It works on the old server, and the code I think it&#39;s not the problem, because it works on localhost, and on the new server it doesn&#39;t. Can anyone help me?


Fatal error: Call to undefined function mysqli_connect()

I am using Paper-Button but I am facing issue that the button text always gets capitalized instead or normal case.
I do not see any CSS or Javascript property being applied to make it upper case.

How should I resolve this problem?


Paper-Button always as upper case

Have a code like:

    switch (indexPath.section, indexPath.row) {
        case (0, 1...5): println(&quot;in range&quot;)
        default: println(&quot;not at all&quot;)
    }

**The question is can I use multiple intervals in second tuple value?**

for non-tuple switch it can be done pretty easily like

    switch indexPath.section {
    case 0:
        switch indexPath.row {
        case 1...5, 8...10, 30...33: println(&quot;in range&quot;)
        default: println(&quot;not at all&quot;)
        }
    default: println(&quot;wrong section \(indexPath.section)&quot;)
    }

Which separator should I use to separate my intervals inside tuple or it&#39;s just not gonna work for tuple switches and I have to use switch inside switch? Thanks!

Swift: Multiple intervals in single switch-case using tuple

Have a code like:
<pre><code class="hljs language-go">switch (indexPath.section, indexPath.row) {
 case (0, 1...5): println("in range")
 default: println("not at all")
}
</code></pre>
The question is can I use multiple intervals in second tuple value?
for non-tuple switch it can be done pretty easily like
<pre><code class="hljs language-go">switch indexPath.section {
case 0:
 switch indexPath.row {
 case 1...5, 8...10, 30...33: println("in range")
 default: println("not at all")
 }
default: println("wrong section \(indexPath.section)")
}
</code></pre>
Which separator should I use to separate my intervals inside tuple or it's just not gonna work for tuple switches and I have to use switch inside switch? Thanks!

I have created a custom UICollectionViewCell in Interface Builder, binded views on it to the class, and then when I want to use and set a string to the label on the string, tha label has a nil value.

    override func viewDidLoad() {
        super.viewDidLoad()
        
        // Register cell classes
        self.collectionView.registerClass(LeftMenuCollectionViewCell.self, forCellWithReuseIdentifier: &quot;ls&quot;)
    }

    override func collectionView(collectionView: UICollectionView!, cellForItemAtIndexPath indexPath: NSIndexPath!) -&gt; UICollectionViewCell! {
        
        var cell: LeftMenuCollectionViewCell
        cell = collectionView.dequeueReusableCellWithReuseIdentifier(&quot;ls&quot;, forIndexPath: indexPath) as LeftMenuCollectionViewCell
        println(cell.label) // &lt;- this is nil, why??
        cell.label.text = &quot;asd&quot;
       
        return cell
    }

And the subclassed cell:

    class LeftMenuCollectionViewCell: UICollectionViewCell {
        
        @IBOutlet weak var imageView: UIImageView!
        @IBOutlet weak var label: UILabel!
        @IBOutlet weak var activityIndicatorView: UIActivityIndicatorView!
    }



Why is UICollectionViewCell&#39;s outlet nil?

I have some labels which I want to adjust their height to the text, this is the code I wrote for this now

    func heightForView(text:String, font:UIFont, width:CGFloat) -&gt; CGFloat{
        let label:UILabel = UILabel(frame: CGRectMake(0, 0, width, CGFloat.max))
        label.numberOfLines = 0
        label.lineBreakMode = NSLineBreakMode.ByWordWrapping
        label.font = font
        label.text = text

        label.sizeToFit()
        return label.frame.height
    }

**EDIT:**

The issue was not in this piece of code, so my fix is in the question itself. It might still be useful for others!

Adjust UILabel height to text

In iOS 7, the document directory of the iOS simulators can be found in:

    /Users/Sabo/Library/Application Support/iPhone Simulator/

However, in **iOS 8 Beta Simulator**, I can&#39;t find the corresponding directory for **iOS 8** in the directory above.

Where&#39;s the document directory path for the iOS 8 Simulator?

![enter image description here][1]

  [1]: http://i.stack.imgur.com/C3b5Y.png

Document directory path of Xcode Device Simulator

I have created a utility class in my Swift project that handles all the REST requests and responses. I have built a simple REST API so I can test my code. I have created a class method that needs to return an NSArray but because the API call is async I need to return from the method inside the async call. The problem is the async returns void.
If I were doing this in Node I would use JS promises but I can&#39;t figure out a solution that works in Swift.

    import Foundation

    class Bookshop {
        class func getGenres() -&gt; NSArray {
            println(&quot;Hello inside getGenres&quot;)
            let urlPath = &quot;http://creative.coventry.ac.uk/~bookshop/v1.1/index.php/genre/list&quot;
            println(urlPath)
            let url: NSURL = NSURL(string: urlPath)
            let session = NSURLSession.sharedSession()
            var resultsArray:NSArray!
            let task = session.dataTaskWithURL(url, completionHandler: {data, response, error -&gt; Void in
                println(&quot;Task completed&quot;)
                if(error) {
                    println(error.localizedDescription)
                }
                var err: NSError?
                var options:NSJSONReadingOptions = NSJSONReadingOptions.MutableContainers
                var jsonResult = NSJSONSerialization.JSONObjectWithData(data, options: options, error: &amp;err) as NSDictionary
                if(err != nil) {
                    println(&quot;JSON Error \(err!.localizedDescription)&quot;)
                }
                //NSLog(&quot;jsonResults %@&quot;, jsonResult)
                let results: NSArray = jsonResult[&quot;genres&quot;] as NSArray
                NSLog(&quot;jsonResults %@&quot;, results)
                resultsArray = results
                return resultsArray // error [anyObject] is not a subType of &#39;Void&#39;
            })
            task.resume()
            //return &quot;Hello World!&quot;
            // I want to return the NSArray...
        }
    }

Returning data from async call in Swift function

I&#39;m playing around with SpriteKit in Xcode 6, iOS 8 beta 5. Everything is all laid out and working perfectly on the iPhone 4S simulator, however when switching to the 5S, the elements at the bottom of the screen are cut off. 

It was to my understanding that the bottom left corner of the iPhone screen should be CGPoint(0, 0) but after checking the location by printing the coordinates to the console that the lowest point of the left corner I could click was around (5, 44).  Is there something wrong in my scene setup thats causing this?

No changes have been made to the GameViewController file and even after I strip the GameScene file the problem persists.

Can anyone at least point me in the right direction with this?

Dealing with different iOS device resolutions in SpriteKit

I have a navigation bar with a title.
When I double click the text to rename it, it actually says it&#39;s a navigation item, so it might be that.

I&#39;m trying to change the text using code, like:

    declare navigation bar as navagationbar here
    button stuff {
        navigationbar.text = &quot;title&quot;
    }

That&#39;s not my code obviously, just showing how it would work.

So whenever I press the button, I want the title to change.

Changing navigation title programmatically

I need create an array to add objects with this format like a dictionary in Swift : [&quot;key1&quot;: &quot;value1&quot;, &quot;key2&quot;: &quot;value2&quot;]
        
When I try to save it with `NSUserDefaults` all is correct, but when read `NSUserDefaults` with the key this crashes. What type of data does my var obj need?

    let def = NSUserDefaults.standardUserDefaults()
    var key = &quot;keySave&quot;
    var element: AnyObject!

    var array1: [AnyObject!] = []
    array1.append([&quot;key1&quot;: &quot;val1&quot;, &quot;key2&quot;: &quot;val2&quot;])
    array1.append([&quot;key1&quot;: &quot;val1&quot;, &quot;key2&quot;: &quot;val2&quot;])

    //save
    var savestring : [AnyObject!]
    savestring = array1
    var defaults = NSUserDefaults.standardUserDefaults()
    defaults.setObject(savestring, forKey: key)
    defaults.synchronize()

    //read
    var obj: [AnyObject!] = []
    if(obj != nil){
        print(&quot;size: &quot;)
        print(obj.count) //vary long value confused..
        element = obj[0]  //crash
        print(element.objectForKey(&quot;key1&quot;))
    }


how to save and read array of array in NSUserdefaults in swift?

We know that we can use an `if let` statement as a shorthand to check for an optional nil then unwrap.

However, I want to combine that with another expression using the logical AND operator `&amp;&amp;`.

So, for example, here I do optional chaining to unwrap and optionally downcast my rootViewController to tabBarController. But rather than have nested if statements, I&#39;d like to combine them.

    if let tabBarController = window!.rootViewController as? UITabBarController {
        if tabBarController.viewControllers.count &gt; 0 {
            println(&quot;do stuff&quot;)
         }
     }

Combined giving:

    if let tabBarController = window!.rootViewController as? UITabBarController &amp;&amp;
        tabBarController.viewControllers.count &gt; 0 {
            println(&quot;do stuff&quot;)
         }
    }

The above gives the compilation error **Use of unresolved identifier &#39;tabBarController&#39;**

Simplifying:

    if let tabBarController = window!.rootViewController as? UITabBarController &amp;&amp; true {
       println(&quot;do stuff&quot;)
    }

This gives a compilation error **Bound value in a conditional binding must be of Optional type**. Having attempted various syntactic variations, each gives a different compiler error. I&#39;ve yet to find the winning combination of order and parentheses.

**So, the question is, is it possible and if so what is correct syntax?**

*Note that I want to do this with an `if` statement **not** a `switch` statement or a ternary `?` operator.*


Using the Swift if let with logical AND operator &amp;&amp;

I&#39;m running a switch case with column numbers which can be in the range 0 - 50. Now each case supports discrete column number and I observe its failure.

Here is the code:

        i=10
        a=1
        b=0.65
        if [ &quot;$a&quot; != &quot;$b&quot; ]; then 
           case $i in  
                [1]|[2]|[5]) echo &quot;Not OK&quot;; ;; 
                [9-10]|[12]) echo &quot;may be ok&quot;; ;; 
                *) echo &quot;no clue - $i&quot;; ;; 
           esac
       fi

I expect this code to output `may be ok` but get `no clue - 10`.

How to make case statement match a number range?

In Swift you can check the class type of an object using &#39;is&#39;. How can I incorporate this into a &#39;switch&#39; block? 

I think it&#39;s not possible, so I&#39;m wondering what is the best way around this.

Swift: Test class type in switch statement

In Swift, how can I write a case in a switch statement that tests the value being switched against the contents of an *optional*, skipping over the case if the optional contains `nil`?

Here&#39;s how I imagine this might look:

    let someValue = 5
    let someOptional: Int? = nil
    
    switch someValue {
    case someOptional:
    	// someOptional is non-nil, and someValue equals the unwrapped contents of someOptional
    default:
    	// either, someOptional is nil, or someOptional is non-nil but someValue does not equal the unwrapped contents of someOptional
    }

If I just write it exactly like this, the compiler complains that `someOptional` is not unwrapped, but if I explicitly unwrap it by adding `!` to the end, I of course get a runtime error any time `someOptional` contains `nil`. Adding `?` instead of `!` would make some sense to me (in the spirit of optional chaining, I suppose), but doesn&#39;t make the compiler error go away (i.e. doesn&#39;t actually unwrap the optional).

Swift: testing against optional value in switch case

i have the following enum

    enum EditMode {
        View = 0,
        Edit = 1,
        Delete = 2
    }

Let&#39;s assume i have a variable of the enum type

    var editMode = EditMode.Edit;

Why does the following code not work (goes straight to default)?

    switch (editMode) {
        case EditMode.Delete:
            ...
            break;
        case EditMode.Edit:
            ...
            break;
        default:
            ...
            break;
        }


Typescript enum switch not working

`switch` statements can be super useful, but lead to a common bug where a programmer forgot a break statement:

    switch(val) {
        case 0:
            foo();
            break;
        case 1:
            bar();
            // oops
        case 2:
            baz();
            break;
        default:
            roomba();
    }

You won&#39;t get a warning obviously since sometimes fall-through is explicitly desired. Good coding style suggests to comment when your fall-through is deliberate, but sometimes that is insufficient. 

I&#39;m pretty sure the answer to this question is no, but: is there any way currently (or proposed in the future) to be able to ask the compiler to throw an error (or at least a warning!) if your `case` does not have at least one of `break;` or something to the effect of `// fallthru`? It would be nice to have a defensive programming option for using `switch` statements. 

C++ Force compile-time error/warning on implicit fall-through in switch

On the [**Boost mailinglist**][1], the following clever trick to create a tuple-like entity was recently posted by @LouisDionne:

    #include &lt;iostream&gt;
    
    auto list = [](auto ...xs) { 
        return [=](auto access) { return access(xs...); }; 
    }; 
        
    auto length = [](auto xs) { 
        return xs([](auto ...z) { return sizeof...(z); }); 
    };
    
    int main()
    {
        std::cout &lt;&lt; length(list(1, &#39;2&#39;, &quot;3&quot;)); // 3    
    }

[**Live Example**][2].

The cleverness is that `list` is a lambda taking a variadic parameter-list as input, and returning a lambda as an output that will take another lambda to act on its input. Similarly, `length` is a lambda taking a list-like entity, to which it will supply the variadic `sizeof...` operator to the list&#39;s original input parameters. The `sizeof...` operator is wrapped inside a lambda so that it can be passed to the `list`.

**Question**: is there a name for this tuple-creation idiom? Perhaps from a functional programming language where higher-order functions are more commonly used.

  [1]: http://lists.boost.org/Archives/boost/2014/06/214213.php
  [2]: http://coliru.stacked-crooked.com/a/11edc69bc10817e5

Is there a name for this tuple-creation idiom?

I have a named tuple class in python 

    class Town(collections.namedtuple(&#39;Town&#39;, [
        &#39;name&#39;, 
        &#39;population&#39;,
        &#39;coordinates&#39;,
        &#39;population&#39;, 
        &#39;capital&#39;, 
        &#39;state_bird&#39;])):
        # ...


I&#39;d like to convert Town instances into dictionaries. I don&#39;t want it to be rigidly tied to the names or number of the fields in a Town. 

Is there a way to write it such that I could add more fields, or pass an entirely different named tuple in and get a dictionary.

I can not alter the original class definition as its in someone else&#39;s code. So I need to take an instance of a Town and convert it to a dictionary.


Convert a namedtuple into a dictionary

Consider I have a custom type (which I can extend):

    struct Foo {
        int a;
        string b;
    };

How can I make an instance of this object assignable to a `std::tie`, i.e. `std::tuple` of references?

    Foo foo = ...;

    int a;
    string b;

    std::tie(a, b) = foo;

**Failed attempts:**

Overloading the assignment operator for `tuple&lt;int&amp;,string&amp;&gt; = Foo` is not possible, since assignment operator is one of the binary operators which have to be members of the left hand side object.

So I tried to solve this by implementing a suitable **tuple-conversion operator**. The following versions fail:

* `operator tuple&lt;int,string&gt;() const`
* `operator tuple&lt;const int&amp;,const string&amp;&gt;() const`

They result in an error at the assignment, telling that &quot;`operator =` is not overloaded for `tuple&lt;int&amp;,string&amp;&gt; = Foo`&quot;. I guess this is because &quot;conversion to any type X + deducing template parameter X for operator=&quot; don&#39;t work together, only one of them at once.

**Imperfect attempt:**

Hence I tried to implement a conversion operator for the **exact type of the tie**:

* `operator tuple&lt;int&amp;,string&amp;&gt;() const` &amp;nbsp; &lt;kbd&gt;[**Demo**][2]&lt;/kbd&gt;
* `operator tuple&lt;int&amp;,string&amp;&gt;()` &amp;nbsp; &lt;kbd&gt;[**Demo**][1]&lt;/kbd&gt;

The assignment now works since types are now (after conversion) exactly the same, but this won&#39;t work for three scenarios which I&#39;d like to support:

1. If the tie has variables of different but convertible types bound (i.e. change `int a;` to `long long a;` on the client side), it fails since the types have to fully match. This contradicts the usual use of assigning a tuple to a tuple of references which allows convertible types.&lt;sup&gt;(1)&lt;/sup&gt;
2. The conversion operator needs to return a tie which has to be given lvalue references. This won&#39;t work for temporary values or const members.&lt;sup&gt;(2)&lt;/sup&gt;
3. If the conversion operator is not const, the assignment also fails for a `const Foo` on the right hand side. To implement a const version of the conversion, we need to hack away const-ness of the members of the const subject. This is ugly and might be abused, resulting in undefined behavior.

I only see an alternative in providing my own `tie` function + class together with my &quot;tie-able&quot; objects, which makes me force to duplicate the functionality of `std::tie` which I don&#39;t like (not that I find it difficult to do so, but it feels wrong to have to do it).

I think at the end of the day, the conclusion is that this is one drawback of a library-only tuple implementation. They&#39;re not as magic as we&#39;d like them to be.

### **EDIT:**

As it turns out, there doesn&#39;t seem to be a real solution addressing all of the above problems. A very good answer would explain why this isn&#39;t solvable. In particular, I&#39;d like someone to shed some light on why the &quot;failed attempts&quot; can&#39;t possibly work.

----

&lt;sup&gt;
(1):  A horrible hack is to write the conversion as a template and convert to the requested member types in the conversion operator. It&#39;s a horrible hack because I don&#39;t know where to store these converted members. In [this demo](http://coliru.stacked-crooked.com/a/1563399789ac028d) I use static variables, but this is not thread-reentrant.
&lt;/sup&gt;

&lt;sup&gt;
(2): Same hack as in (1) can be applied.
&lt;/sup&gt;

  [1]: http://coliru.stacked-crooked.com/a/ebf805541348be48
  [2]: http://coliru.stacked-crooked.com/a/67a8a0a0ad778dec

Make custom type &quot;tie-able&quot; (compatible with std::tie)

Consider the following expressions:

    new Tuple&lt;int,int&gt;(1,2);
    
    Tuple.Create(1,2);

Is there any difference between these two methods of Tuple creation? From my reading it seems to be more a convenient shorthand than anything like object creation in C++ (heap vs stack).

Tuple.Create() vs new Tuple

I have a list of tuples similar to the below:

    [(date1, ticker1, value1),(date1, ticker1, value2),(date1, ticker1, value3)]

I want to convert this to a DataFrame with `index=date1`, `columns=ticker1`, and `values = values`.  What is the best way to do this?

EDIT:

My end goal is to create a DataFrame with a datetimeindex equal to date1 with values in a column labeled &#39;ticker&#39;:

    df = pd.DataFrame(tuples, index=date1)

Right now the tuple is generated with the following:

    tuples=list(zip(*prc_path))

where prc_path is a numpy.ndarray with shape (1000,1)




List of Tuples to DataFrame Conversion

I&#39;m running Xcode 6 Beta 5 but this has been happening since the first beta. My app&#39;s directory in the simulator keeps being renamed after each run. It took me a while to figure this out. I&#39;m using this to get the doc&#39;s dir reference. 

    NSString *folder = [NSSearchPathForDirectoriesInDomains(NSDocumentDirectory,
                                                            NSUserDomainMask,
                                                            YES) lastObject];
    
    NSLog(@&quot;Documents Dir: %@&quot;,folder);

Now for example on the first run it&#39;ll be:

/Users/Joey/Library/Developer/CoreSimulator/Devices/5B9930EE-A9B4-4B36-BABB-AA864ACAF2DE/data/Containers/Data/Application/**4B10C2E4-A5C3-4C64-93B1-4069FCCB9C46**/Documents

Second run now it&#39;s:

/Users/Joey/Library/Developer/CoreSimulator/Devices/5B9930EE-A9B4-4B36-BABB-AA864ACAF2DE/data/Containers/Data/Application/**7E9EB62D-115A-4092-AD23-CB6BA3E5E10F**/Documents

Third run:

/Users/Joey/Library/Developer/CoreSimulator/Devices/5B9930EE-A9B4-4B36-BABB-AA864ACAF2DE/data/Containers/Data/Application/**EC8F41E8-52ED-4B10-9808-B3ACC46FC6AA**/Documents

This is wreaking havoc with my app because it stores path references for certain files within the app. It&#39;s not that my NSLog statement is returning incorrect results, I verified this is what happening in Finder. It&#39;s changing the name every time. Has anyone seen this happen? Is this a &quot;feature&quot; that I&#39;m misunderstanding?

Xcode 6 keeps renaming my app&#39;s directory in iOS8 simulator after each run.

I&#39;m getting an error message from the linker when building a Swift program with Xcode 6 beta 6, targeting iOS 8.  This code compiled and ran correctly with beta 5.

	Undefined symbol for architecture x86_64:
  	__TFSs26_forceBridgeFromObjectiveCU__FTPSs9AnyObject_MQ__Q_&quot;, referenced from:
     __TFC8RayTrace14RayTracingPlot15drawFocalPointfS0_FT_T_ in RayTracingPlot.o
	ld: symbol(s) not found for architecture x86_64

Here&#39;s the code in question:

    private func drawFocalPoint() {
        var attributes = Dictionary&lt;String, AnyObject&gt;()
       
        let FString: String = &quot;F&quot;
        let distance: CGFloat = focalDistance

        let centerX = CGRectGetMidX(bounds)
        let centerY = CGRectGetMidY(bounds)
        
        let circleRadius: CGFloat = 4.0
        let focalPointFrame = CGRectMake(0, 0, circleRadius * 2.0, circleRadius * 2.0)
        var path = UIBezierPath(ovalInRect: focalPointFrame)
        let color = UIColor.blackColor()
        
        let currentContext = UIGraphicsGetCurrentContext()
        CGContextSaveGState(currentContext)
        let shadowColor = UIColor(white:0, alpha:0.75).CGColor
        CGContextSetShadowWithColor(currentContext, CGSizeMake(0, 4), CGFloat(8), shadowColor)
        
        // Image F
        var imageFPath = UIBezierPath(CGPath: path.CGPath)
        let imageFTransform = CGAffineTransformMakeTranslation((centerX - distance - circleRadius),
            (centerY - circleRadius))
        imageFPath.applyTransform(imageFTransform)
        color.set()
        imageFPath.fill()
        FString.drawAtPoint(CGPointMake(centerX - distance - circleRadius, centerY + 5), withAttributes:attributes)
                
        CGContextSetShadowWithColor(currentContext, CGSizeMake(0.0, 0.0), CGFloat(0.0), nil) // Clear shadow
        CGContextRestoreGState(currentContext)
    }

I&#39;d appreciate a hint about where in this code to look for the error so I can fix it.  Thank you.


Swift beta 6 - Confusing linker error message

I have an application which works fine on Xcode6-Beta1 and Xcode6-Beta2 with both iOS7 and iOS8. But with Xcode6-Beta3, Beta4, Beta5 I&#39;m facing network issues with iOS8 but everything works fine on iOS7. I get the error `&quot;The network connection was lost.&quot;`. The error is as follows:

&gt; Error: Error Domain=NSURLErrorDomain Code=-1005 &quot;The network connection was lost.&quot; UserInfo=0x7ba8e5b0 {NSErrorFailingURLStringKey=&lt;URL&gt;, _kCFStreamErrorCodeKey=57, NSErrorFailingURLKey=&lt;URL&gt;, NSLocalizedDescription=The network connection was lost., _kCFStreamErrorDomainKey=1, NSUnderlyingError=0x7a6957e0 &quot;The network connection was lost.&quot;}

I use AFNetworking 2.x and the following code snippet to make the network call:

    AFHTTPRequestOperationManager *manager = [AFHTTPRequestOperationManager manager];
    [manager setSecurityPolicy:policy];
    manager.requestSerializer = [AFHTTPRequestSerializer serializer];
    manager.responseSerializer = [AFHTTPResponseSerializer serializer];
    
    [manager POST:&lt;example-url&gt;
       parameters:&lt;parameteres&gt;
          success:^(AFHTTPRequestOperation *operation, id responseObject) {
              NSLog(@“Success: %@&quot;, responseObject);
          } failure:^(AFHTTPRequestOperation *operation, NSError *error) {
              NSLog(@&quot;Error: %@&quot;, error);
          }];

I tried `NSURLSession` but still receive the same error.

Content Type	Original Author	Original Content on Stackoverflow
Question	iiFreeman	View Question on Stackoverflow
Solution 1 - Ios	drewag	View Answer on Stackoverflow

Swift: Multiple intervals in single switch-case using tuple

Ios Problem Overview

Ios Solutions

Solution 1 - Ios

Paper-Button always as upper case

Fatal error: Call to undefined function mysqli_connect()

Attributions