How to get key and value from an NSDictionary?

Question

This is my code but it does not log any keys or values

NSDictionary *d = @{
      @"foo": @"bar",
      @"abc": @"def"
    };

    for (NSString* key in d.allKeys) {
        NSString *value = (NSString *)[d objectForKey:key];
        NSLog(@"areacodedisplay: value = %@",value);
        NSLog(@"areacodedisplay: key = %@",key);
    }

How to get key and value from an NSDictionary?

Please explain the question because the code works and produces: `areacodedisplay: value = bar` and `areacodedisplay: key = foo`. — zaph, Dec 14 '14 at 15:24
Yep there is nothing wrong with this code works fine for me. — Popeye, Dec 14 '14 at 15:25
You may need to set Xcode to show the log window. Shift-command-C. — zaph, Dec 14 '14 at 15:26

score 2 · Accepted Answer · edited May 23 '17 at 10:26

2

look here: for each loop in objective c for accessing NSMutable dictionary

for (NSString* key in d) {
    id value = [d objectForKey:key];
    NSLog(@"areacodedisplay: value = %@",value);
    NSLog(@"areacodedisplay: key = %@",key);
}

edited May 23 '17 at 10:26

Community

1
1

answered Dec 14 '14 at 15:17

Roman Roba

405
5
11

2

@totalitarian - Uh, maybe it's those things called "key" and "value". – Hot Licks Dec 14 '14 at 15:25
This is essentially identical to the OP's code. Iterating an `NSDictionary` (as in this answer) is the same as iterating the keys (as in the OP's code). So I'm confused as to why this answer was accepted. If this works then the OP's code must also work. – rmaddy Dec 14 '14 at 17:23
@rmaddy - The whole question deserves to be closed as "can no longer be reproduced". – Hot Licks Dec 14 '14 at 19:54

score 2 · Answer 2 · edited May 20 '22 at 06:57

2

This code works:

NSDictionary *d = @{
    @"foo": @"bar"
};
    
for (NSString* key in d.allKeys)
{
    NSString *value = [d objectForKey:key];
    NSLog(@" value = %@",value);
    NSLog(@"key = %@",key);
}

edited May 20 '22 at 06:57

Dada

6,313
7
24
43

answered Dec 14 '14 at 15:27

sunil singh

111
10

Sorry i've fixed my code, the NSDictionary should have 2 objects. Only the frist key>value get printed out – totalitarian Dec 14 '14 at 15:44

score -1 · Answer 3 · answered May 13 '22 at 05:58

-1

var Dict1 = NSMutuabledictionary() dict1.setValue(lbl1.text ?? "", forKey: "name") dict1.setValue(lbl2.text ?? "", forKey: "email") dict1.setValue( lbl3.text ?? "", forKey: "phone") dict1.setValue( lbl4.text ?? "", forKey: "date") dict1.setValue(lbl15.text ?? "", forKey: "password") dict1.setValue( lbl6.text ?? "", forKey: "confirm")

answered May 13 '22 at 05:58

Sandeep Thakur

1

1

Welcome to Stack Overflow! While this code may solve the question, [including an explanation](//meta.stackexchange.com/q/114762) of how and why this solves the problem would really help to improve the quality of your post, and probably result in more up-votes. Remember that you are answering the question for readers in the future, not just the person asking now. Please [edit] your answer to add explanations and give an indication of what limitations and assumptions apply. – Yunnosch May 13 '22 at 06:01

How to get key and value from an NSDictionary?

3 Answers3