In simple way, Result in will fireplace if you manipulate information into desk. so when bring about invoke, you have got both equally worth. 1 is referring to aged facts worth and one is the new data price which you recently update/delete/insert.
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. That's, “I’m producing a completely new technique from the derived course which includes Unquestionably practically nothing to perform with any solutions by precisely the same name in The bottom class.” - by stated Whitaker
In specified circumstances, you might want to wrap all exceptions inside of a customized exception object, so that you can offer further information about exactly what the code was undertaking when the exception was thrown.
From all All those, new is considered the most baffling. By means of experimenting, The brand new search phrase is like giving developers the option to override the inheriting course implementation with The bottom class implementation by explicitly defining the sort.
In any circumstance, independently on the implementation, all JavaScript implementations that follow the ECMAScript specification ideal, will provide you with an item-oriented language. Based on the ES standard:
Throughout the result in system, the :Aged and :NEW key terms permit you to accessibility columns within the rows affected by a induce
override: overrides the operation of a Digital approach in the base class, providing diverse functionality.
Edit: Digital+override are resolved at runtime (so override really overrides Digital strategies), whilst new just build new system With all the exact same identify, and hides the previous, it is settled at compile time -> your compiler will call the strategy it 'sees'
In the 1st situation you're hiding the definition during the mum or dad course. Consequently it'll only be 乳膠獨立筒 invoked while you are managing the article as the child course.
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Do “employer” and “employee” Countrywide Insurance policies contributions really position extra load on the employer and personnel respectively?
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