NSString boolValue example ios

boolValue

Returns the Boolean value of the receiver’s text.

- (BOOL)boolValue

Return Value of [NSString boolValue]

The Boolean value of the receiver’s text. Returns YES on encountering one of "Y", "y", "T", "t", or a digit 1-9—the method ignores any trailing characters. Returns NO if the receiver doesn’t begin with a valid decimal text representation of a number.

Discussion of [NSString boolValue]

The method assumes a decimal representation and skips whitespace at the beginning of the string. It also skips initial whitespace characters, or optional -/+ sign followed by zeroes.

Example of [NSString boolValue]

BOOL errortest = [[values valueForKey:@"isError"] boolValue];

Example of [NSString boolValue]

NSDictionary *drivingAlertResponse = [jsonResponseString objectFromJSONString];
BOOL isEnabled = [[drivingAlertResponse valueForKey:@"alertStatus"] boolValue];