Answer / Km. Arti

To convert a string to an NSNumber object in Objective-C, you can use the following code:
```objectivec
NSString *yourString = @"42";
NSNumber *number = [yourString numberWithInteger:[yourString integerValue]]; // for integer values
// For floating point numbers:
double yourDouble = 3.14;
NSString *yourStringDouble = [NSString stringWithFormat:@"%f", yourDouble];
NSNumber *numberDouble = [yourStringDouble numberWithDouble:yourDouble];
```

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