instance-methods | 易学教程

Call static method from instance in PHP, future deprecation?

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问题 While I understand the $this variable is not available when a method is called in a static context, to assist in decoupling my application components from one-another I figured it would make sense to call static methods from an instance. For example: class MyExample{ private static $_data = array(); public static function setData($key, $value){ self::$_data[$key] = $value; } // other non-static methods, using self::$_data } // to decouple, another class or something has been passed an

Referring to javascript instance methods with a pound/hash sign

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This question is similar to Why are methods in Ruby documentation preceded by a hash sign? I understand why in Ruby instance methods are proceeded with a pound sign, helping to differentiate talking about SomeClass#someMethod from SomeObject.someMethod and allowing rdoc to work. And I understand that the authors of PrototypeJS admire Ruby (with good reason) and so they use the hash mark convention in their documentation . My question is: is this a standard practice amongst JavaScript developers or is it just Prototype developers who do this? Asked another way, is it proper for me to refer to

What is the difference between class and instance methods?

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问题 What\'s the difference between a class method and an instance method? Are instance methods the accessors (getters and setters) while class methods are pretty much everything else? 回答1: Like most of the other answers have said, instance methods use an instance of a class, whereas a class method can be used with just the class name. In Objective-C they are defined thusly: @interface MyClass : NSObject + (void)aClassMethod; - (void)anInstanceMethod; @end They could then be used like so: [MyClass