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How can i tell if an object has a key value observer attached
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315
Put a try catch around your removeObserver call
@try{
[someObject removeObserver:someObser...
When should I use “this” in a class?
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363
The this keyword is primarily used in three situations. The first and most common is in setter...
Creating Unicode character from its number
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How come an array's address is equal to its value in C?
...cally converts pointers in hexadecimal, it might look something like:
0x12341000 0x12341010
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What are the differences between a clustered and a non-clustered index?
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MartynnwMartynnw
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What is a WeakHashMap and when to use it? [duplicate]
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83
Elements in a weak hashmap can be reclaimed by the garbage collector if there are no other stron...
Best practice for storing and protecting private API keys in applications [closed]
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359
As it is, your compiled application contains the key strings, but also the constant names APP...
Difference between == and ===
...ot identical and the output the two instance are not identical!
let person3 = person1
P.S: Classes are reference types and person1's reference is copied to person3 with this assignment operation, thus both references point the same instance in Heap area.
if person3 === person1 {
print("the tw...
How to convert CFStringRef to NSString?
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350
NSString and CFStringRef are "Toll free bridged", meaning that you can simply typecast between...
What is difference between monolithic and micro kernel?
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edited Jan 28 '16 at 23:03
Atte Juvonen
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