CODEWITHSUNDEEP
iosobjective-cnsstring
Austin Haws
Austin Haws

Reputation: 384

NSString NSArray to Joined String with "and" Between Last Two Items

I have an NSArray of String phrases like @[@"unanswered questions", @"inspection purpose not selected", @"customer name empty"].

I would like to combine these strings in to a comma separated string with the word @"and" coming between the last two items.

NSArray componentsJoinedByString will join with commas, but won't put in the @" and ".

Is there an easy way to do this?

Upvotes: 1

Views: 180

Answers (6)

Austin Haws
Austin Haws

Reputation: 384

Here's davide rosetto's answer but using a mutable string:

NSArray *array = @[@"unanswered questions", @"inspection purpose not selected", @"customer name empty"];
NSMutableString *str = [NSMutableString stringWithString:array[0]];

if (array.count > 1) {
    for (int i = 1; i < array.count - 1; i++) {
        [str appendFormat:@", %@", array[i]];
    }
    [str appendFormat:@" and %@", array.lastObject];
}
NSLog(@"%@", str);

Upvotes: 0

Austin Haws
Austin Haws

Reputation: 384

Here's what I ended up doing.

+ (NSString*)joinStringArrayWithAnd:(NSArray*)strings
{
    if (strings.count > 1) {
        NSMutableArray *mutableStrings = [strings mutableCopy];
        mutableStrings[strings.count - 1] = [NSString stringWithFormat:@"and %@", strings[strings.count - 1]];
        strings = mutableStrings;
    }
    return [strings componentsJoinedByString:@", "];
}

Upvotes: 1

Davide Rossetto
Davide Rossetto

Reputation: 485

Try this:

NSArray *array = @[@"unanswered questions", @"inspection purpose not selected", @"customer name empty"];
NSString *str = array[0];

if (array.count > 1)
    for (int i=1; i<array.count-1 ;i++) {
        str = [NSString stringWithFormat:@"%@, %@",str,array[i]];
    }
    str = [NSString stringWithFormat:@"%@ and %@",str,array.lastObject];
}

NSLog(@"%@",str);

Upvotes: 1

Sebyddd
Sebyddd

Reputation: 4315

A more flexible solution would be to iterate over each NSString in your array and append it to the final string:

NSString *finalString = @"";

//Iterate over the strings from your array
for (int i=0; i<[yourArray count]; i++) {

    if(i != yourArray.count-1)
        finalString = [finalString stringByAppendingString:[NSString stringWithFormat:@"%@, ", yourArray[i]]];
    else
        finalString = [finalString stringByAppendingString:[NSString stringWithFormat:@"and %@", yourArray[i]]];

}

Upvotes: 0

Aaron
Aaron

Reputation: 7145

Call componentsJoinedByString to get your comma separated strings, then string-replace the last comma with @" and "

Upvotes: 0

KenL
KenL

Reputation: 197

Is the count of items in the array always fixed? If so, you could do it with something like:

NSString *combined = [NSString stringWithFormat: @"%@, %@ and %@", phrases[0], phrases[1], phrases[2]];

-ken

Upvotes: -1

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