In object-oriented computer programming, a Null Object is an object with defined neutral ("null") behavior. The Null Object design pattern describes the uses of such objects and their behavior (or lack thereof). It was first published in the Pattern Languages of Program Design book series.
Motivation
In most object-oriented languages, such as Java or C#, references may be null. These references need to be checked to ensure they are not null before invoking any methods, because methods typically cannot be invoked on null references.
The Objective-C language takes another approach to this ...
i actually find it very annoying to use languages where there is no null. beacuse then you just end up expressing the lack of something another, shittier way
I just think that a null object pattern is useful in how it simplifies code, but dangerous in how it hides details. A lot of programmers I know can recognize a null-check, and understand its importance. If there isn't one, most people I know would assume that the object either can't be supplied as null by design, or is checked for elsewhere.
It'd be like there being no security checkpoint at an airport. Even if there is an advanced X-ray system across the main entry point, and equipment to label security threats for later questioning without obstructing traffic, it still seems wrong.
the real answer is "it depends". there are times when "null" sucks. and there are times when its great. object creation is interesting. for games, a lot of the time you want a "ghost" object while you load in data behind that. you cant really deal with having "null" in that instance. as you have "something". when you're not dealing with async stuff null i feel is perfectly valid way of saying "this didnt work/go as expected". the alternative to that is what exactly? exceptions? just as terrible.
Say you create a person with an age of -1. What does your language allow for saying that failed? In C, we'd just return a null pointer, and you do "if(personPointer)"
Basically, I feel Null Object Pattern is useful when you can afford to treat the lack of an object like a real object (think open-road tolling; you want null objects to continue on and not obstruct real objects, and you'll catch them later by their license plate), but it's not useful when the distinction of a null object is something you want to use for control flow, since then it just makes that more complicated.
i guess its quite personal as how you approach the concept of "nothingness" is quite integral to how one looks and and decomposes problems. and people approaching problems with a difference concept to yours can be quite confronting. even if the approach is just as valuable in resulting execution
but thats kind of the reason why programmers love semantic arguments too
"Carry On" is a song by American indie band Fun. It was released on 23 October 2012 as the third single off their second album, Some Nights. The song was written by the band members, Nate Ruess, Andrew Dost, Jack Antonoff, alongside the album's producer, Jeff Bhasker. It is also featured in the HGTV 2013 #LoveHome commercial airing on American TV.
The song was also featured the highlight clip for the 2012-13 PBA Philippine Cup Finals.
Composition
"Carry On" has been called "a song about perseverance in hard times", which is supported by a rock-anthem sound composed in 12/8 time. The son...
the big thing is, you can ask, but you'd have to ask everything, because if you say you know something, they'll prove that you're wrong or at least unclear on what you know.
For example, don't call it the standard template library.
@Mr.ShinyandNew安宇 Yo mamma so fat, pictures of her broke TIFF compression scheme 6 (JPEG) so badly that it had to be replaced by scheme 7 (new JPEG). This is why HP multifunction printers can't scan her fat ass.
You used to be able to add global JS objects at any time, which makes sense because it's not specific to any one page. But now, you need some DOM (any DOM) to be loaded before you can create global JS objects. BUT my JS code relies on global JS objects to do stuff, so I had to work around that
@JohnMcDonald i dont use (document).ready in awesomium i call my function pageLoaded from DocumentReady event - i dont know why i had to do this, but it stopped working at some point :)
I'm on pins and needles with the results for the competition I competed in. I have a sick feeling in my stomach because I fear I did not even place(haven't even received one email and they say they are finalizing winners).
If the games the pick as winners are blatantly worse than mind I will probably be in depression. That means my assumption that it was a Good Old' Boys Network was correct.
An old boy network, or society (also old boys' club), can refer to social and business connections among former pupils of male-only private schools. British public school students were traditionally called "boys", thus graduated students are "old boys".
This can apply to the network between the graduates of a single school, also known as an old boy society and similar to an alumni association. It can also mean a network of social and business connections among the alumni of various prestigious schools. In popular language, old boy network or old boy society has come to be used in referenc...