SMALLTALK
1972
ALAN KAY, DAN INGALLS,
& ADELE GOLDBERG
OBJECT-ORIENTED, LISP INSPIRED, MESSAGE PASSING
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[object message:parameter]
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C
1972
DENNIS RITCHIE
PROCEDURAL, ALGOL INSPIRED
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UNIX
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CHOCOLATE +
PEANUT BUTTER
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PHILOSOPHER +
A BAZOOKA
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OBJECTIVE-C
1983
BRAD COX & TOM LOVE
STATIC, DYNAMIC, WEAK
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NS
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STATIC, DYNAMIC, WEAK
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id object = @"foo";
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[object performSelector:@selector(bar)];
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?
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nil, Nil, NULL
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OBJECTIVE-C IS GETTING
BETTER FASTER THAN
ALMOST ANY OTHER
LANGUAGE
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ARC
AUTOMATIC REFERENCE COUNTING
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TIOBE
"PROGRAMMING LANGUAGE OF THE YEAR: 2012"
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OBJECTIVE-C:
THE GOOD PARTS
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KVC
KEY-VALUE CODING
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[person valueForKey:@"name"]
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[person valueForKeyPath:@"spouse.name"]
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[people valueForKeyPath:@"name"]
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[people valueForKeyPath:@"@avg.salary"]
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▸ @count
▸ @sum
▸ @avg
▸ @max
▸ @min
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objc/runtime.h
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METHOD SWIZZLING
ASSOCIATED OBJECTS
DYNAMIC CLASS DEFINITION
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@compatibility_alias
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FRAMEWORKS
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GCD
GRAND CENTRAL DISPATCH
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dispatch_queue_t queue = dispatch_queue_create("queue", NULL);
dispatch_async(queue, ^{
// Do work asynchronously...
dispatch_async(dispatch_get_main_queue(), ^{
// Return with result
});
});
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- (void)performActionWithObject:(id)object
completionBlock:(void (^)(id result, NSError *error))block {
// Do work asynchronously...
if (block) {
// Return with result
block(result);
}
}
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FOUNDATION
THE STANDARD LIBRARY LANGUAGES WOULD
kill FOR
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LINGUISTICS APIS
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NSSTRING
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NSLINGUISTICTAGGER
▸ Token
▸ Lexical Class
▸ Name
▸ Lemma
▸ Language & Script