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I want to save NSDate in core data model.
for example I want to store value for 'birthDate' in model 'User'.
Any help?
Select the attribute and change its type to date
As #inder and Martin Create an attribute of type "Date" in the model inspector
and store it using,
NSDateFormatter *dt = [[NSDateFormatter alloc] init];
[dt setDateFormat:#"yyyy-MM-dd"]; // for example
NSDate *bdate = [dt dateFromString:#"2012-10-15"];
[Sets setValue:bdate forKey:#"birthDate"];
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Closed 7 years ago.
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I need to subtract 15 minutes from a date. Note understanding why following is not working:
eventDate = event.date;
NSDate *alarmDate = [[eventDate] dateByAddingTimeInterval:-60*15];//this is throwing error "Expected identifier"
Thanks for any suggestions.
You've got a syntax error in your code, square braces must only be used when you are sending a "message" to an object. Do not use Objective-C square brace syntax in any other situation.
Here is the correct code:
eventDate = event.date;
NSDate *alarmDate = [eventDate dateByAddingTimeInterval:-60*15];
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Closed 8 years ago.
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This is the best reduced case of I am seeing
NSString * test = #"??( ";
NSLog(#"'%#'", test);
console> '['
I have a work around
NSString * test = #"\x3f\x3f(";
NSLog(#"'%#",test);
console> '??('
It seems like this is likely caused by string interpolation or similar process in the NSString object vivification. I'm posting this question for two reasons.
1) anyone happen to know what is actually causing this?
2) I didn't find anything on this 'feature' of NSString and it took me an hour to track down the bug, so this is just a bread crumb for future programmers. Using the hex code for the character was the work around.
NSlog("'%#'", test); is syntactically incorrect. How are you compiling it with this syntax error?
If I change it to NSLog(#"'%#'", test);, it works correctly (note the string literal denoting # and the uppercase L in NSLog).
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Given I have:
int1, int2, int3 = 1, nil, 3
how would I subtract these ints from another variable, only if they weren't nil? I can write something sloppy, but I want a single line process if possible.
another_variable - [int1, int2, int3].compact.sum
othervariable - int1.to_i # will turn nil into 0
You can write something like
ans = int1 && (int2-int1)
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ForExample:
String is---book
I want "book". Because Second time it will change to another thing.So i am not using NSRange.
Any Solution?
Thanks
NSArray *array = [myString componentsSeparatedByString:#"---"];
NSString *bookString = array[1];
Your question is not very clear, but you may need to use this:
NSString* myString = [myPrevString stringByReplacingOccurrencesOfString:#"---" withString:#""];
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I have created a method which return the time , I want to return the time in RFC 2822 format please suggest how can I achieve this ?
Simply:
require 'time'
t = Time.now
formatted_time = t.rfc2822 # "Wed, 05 Oct 2011 22:26:12 -0400"
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