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Get index of element as child relative to parent
... @steweb - Hey - because one event handler is much preferable to potentially many. Attaching events to the dom can be expensive if you have large lists so as a rule I try to use the above where possible rather than individual handlers on each element. One article that goes deeper is briancrescima...
How to prevent going back to the previous activity?
...rs to go back to. For instance, in your sign in activity, right after you call startActivity, call finish(). When the users hit the back button, they will not be able to go to the sign in activity because it has been killed off the stack.
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When does invoking a member function on a null instance result in undefined behavior?
...) and (b) result in undefined behavior. It's always undefined behavior to call a member function through a null pointer. If the function is static, it's technically undefined as well, but there's some dispute.
The first thing to understand is why it's undefined behavior to dereference a null poin...
Spring 3.0 - Unable to locate Spring NamespaceHandler for XML schema namespace [http://www.springfra
...y configuration xml can be a different one from applicationContext.xml, usually applicationContext-security.xml inside WEB-INF folder. The changes to be applied are for web.xml
<context-param>
<param-name>contextConfigLocation</param-name>
<param-value>
/WEB-...
What is the default access specifier in Java?
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It is known as 'package private' actually. Third-party web sites are not normative references. You should be citing the JLS only.
– Marquis of Lorne
Aug 22 '17 at 8:22
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Sql Server 'Saving changes is not permitted' error ► Prevent saving changes that require table re-cr
...is, then delete old table and rename the Temp Table back to original name. All fine to do as should be in transaction, however relationships will be broken and recreated so if not 100% then could do something unexpected.
– Justin King
Sep 28 '11 at 0:45
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When should I use genetic algorithms as opposed to neural networks? [closed]
...lution space of a GA problem as a set of states or values. Such as "Find all of the ways a set of four chess pieces could be arranged on a chessboard to create a checkmate." However the solution space can also be a set of algorithms. This is where the real power of genetic algorithms come into pl...
How to check if a word is an English word with Python?
... if you want more languages.
There appears to be a pluralisation library called inflect, but I've no idea whether it's any good.
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How to set button click effect in Android?
...ist of states for the button. So for example if you create a new xml file called "button.xml" with the following code:
<selector xmlns:android="http://schemas.android.com/apk/res/android">
<item android:state_focused="true" android:state_pressed="false" android:drawable="@drawable/YOUR...
p vs puts in Ruby
... world of programming, due to your mention of debugging, p or puts? Should all "p" be replaced with "puts" upon completion of debugging?? I see, in an above comment, that p returns an object, which is a huge difference. Im not sure if this answer is complete if it only mentions a small difference t...