Convert NSArray to NSString in Objective-C

Question

I am wondering how to convert an NSArray    Apple     Pear    323    Orange   to a string in Objective-C

User · Answer

One approach would be to iterate over the array, calling the description message on each item:

NSMutableString * result = [[NSMutableString alloc] init];
for (NSObject * obj in array)
{
    [result appendString:[obj description]];
}
NSLog(@"The concatenated string is %@", result);

Another approach would be to do something based on each item's class:

NSMutableString * result = [[NSMutableString alloc] init];
for (NSObject * obj in array)
{
    if ([obj isKindOfClass:[NSNumber class]])
    {
        // append something
    }
    else
    {
        [result appendString:[obj description]];
    }
}
NSLog(@"The concatenated string is %@", result);

If you want commas and other extraneous information, you can just do:

NSString * result = [array description];

User · Answer

Swift 3 0 solution   let string   array joined separator

User · Answer

NSArray  array    NSArray arrayWithObjects   One    Two    Three   nil   NSString  stringFromArray    array componentsJoinedByString          The first line initializes an array with objects  The second line joins all elements of that array by adding the string inside the    and returns a string

User · Answer

The way I know is easy   var NSArray variable   NSArray Object n  var stringVarible   NSArray variable as String   n is the inner position in the array This in SWIFT Language   It might work in Objective C

User · Answer

NSString   result     array valueForKey   description   componentsJoinedByString

User · Answer

NSString   str    componentsJoinedByString         and you have dic or multiple array then used bellow                              NSString   result     array valueForKey   description   componentsJoinedByString

User · Answer

Objective C Solution  NSArray   array       1     2     3    NSString   stringFromArray     array valueForKey   description   componentsJoinedByString   -          1-2-3    Those who are looking for a solution in Swift  If the array contains strings  you can use the String s join method   var array     1    2    3    let stringFromArray    -  join array      1-2-3    In Swift 2   var array     1    2    3    let stringFromArray   array joinWithSeparator  -       1-2-3    In Swift 3  amp  4  var array     1    2    3    let stringFromArray   array joined separator   -       1-2-3

User · Answer

I think Sanjay s answer was almost there but i used it this way   NSArray  myArray     NSArray alloc  initWithObjects   Hello    World   nil   NSString  greeting    myArray componentsJoinedByString        NSLog       greeting     Output    2015-01-25 08 47 14 830 StringTest 11639 394302  Hello World   As Sanjay had hinted - I used method componentsJoinedByString from NSArray that does joining and gives you back NSString  BTW NSString has reverse method componentsSeparatedByString that does the splitting and gives you NSArray back

User · Answer

I recently found a really good tutorial on Objective-C Strings    http   ios-blog co uk tutorials objective-c-strings-a-guide-for-beginners   And I thought that this might be of interest   If you want to split the string into an array use a method called componentsSeparatedByString to achieve this   NSString  yourString     This is a test string       NSArray  yourWords    myString componentsSeparatedByString                yourWords is now     This     is     a     test     string     if you need to split on a set of several different characters  use NSString   s componentsSeparatedByCharactersInSet   NSString  yourString     Foo-bar iOS-Blog   NSArray  yourWords    myString componentsSeparatedByCharactersInSet                     NSCharacterSet characterSetWithCharactersInString   -                           yourWords is now     Foo     bar     iOS     Blog     Note however that the separator string can   t be blank  If you need to separate a string into its individual characters  just loop through the length of the string and convert each char into a new string   NSMutableArray  characters     NSMutableArray alloc  initWithCapacity  myString length    for  int i 0  i  lt   myString length   i          NSString  ichar     NSString stringWithFormat    c    myString characterAtIndex i         characters addObject ichar

[objective-c] Convert NSArray to NSString in Objective-C

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