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What's better at freeing memory with PHP: unset() or $var = null
...ting to know if one is better than the other. I have been using unset() for most of my coding, but I've recently looked through a few respectable classes found off the net that use $var = null instead.
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Purpose of Trigraph sequences in C++?
According to C++'03 Standard 2.3/1:
9 Answers
9
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Android equivalent to NSNotificationCenter
In the process of porting an iPhone application over to android, I am looking for the best way to communicate within the app. Intents seem to be the way to go, is this the best (only) option? NSUserDefaults seems much lighter weight than Intents do in both performance and coding.
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How can I initialize base class member variables in derived class constructor?
...and b in B because they are not members of B. They are members of A, therefore only A can initialize them. You can make them public, then do assignment in B, but that is not a recommended option since it would destroy encapsulation. Instead, create a constructor in A to allow B (or any subclass of A...
How do I check if an element is really visible with JavaScript? [duplicate]
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For the point 2.
I see that no one has suggested to use document.elementFromPoint(x,y), to me it is the fastest way to test if an element is nested or hidden by another. You can pass the offsets of the targetted element to th...
View.setPadding accepts only in px, is there anyway to setPadding in dp?
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Hi, I have a question. Is this formula used for only padding or anything else? e.g. margin or dimmension of a rectangle?
– emeraldhieu
Jul 9 '11 at 16:01
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MySQL Update Inner Join tables query
I have no idea what the problem is. Using MySQL 5.0 I get a compile error when attempting to run the following MySQL update query:
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I need this baby in a month - send me nine women!
...ment style, process maturity, difficulty of the subject matter, etc.). In order to scope this a bit better so we can speak about it in anything but sweeping oversimplifications, I'm going to restate your question:
Under what circumstances, if any, can adding team members to a software developme...
What is the “continue” keyword and how does it work in Java?
I saw this keyword for the first time and I was wondering if someone could explain to me what it does.
13 Answers
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Erasing elements from a vector
I want to clear a element from a vector using the erase method. But the problem here is that the element is not guaranteed to occur only once in the vector. It may be present multiple times and I need to clear all of them. My code is something like this:
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