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Block Comments in Clojure
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A word of warning -- the (comment) macro expands to nil. Use #_ to comment a single form, or #_(comment ...) to comment multiple forms without inserting a nil.
– treat your mods well
Dec 18 '11 at 2:55
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Why can't I assign a *Struct to an *Interface?
I'm just working through the Go tour , and I'm confused about pointers and interfaces. Why doesn't this Go code compile?
4...
how to “reimport” module to python then code be changed after import
...are passing to reload a module?. eg. You should be doing import foo beforehand
– John La Rooy
Nov 6 '12 at 3:25
27
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Using switch statement with a range of value in each case?
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This works great and is simple. Also if you want to select numbers not in the range all you need is if(!isBetween... , good job.
– a54studio
Jul 20 '13 at 13:43
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Why are function pointers and data pointers incompatible in C/C++?
I have read that converting a function pointer to a data pointer and vice versa works on most platforms but is not guaranteed to work. Why is this the case? Shouldn't both be simply addresses into main memory and therefore be compatible?
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How do I perform a Perl substitution on a string while keeping the original?
...a good way to perform a replacement on a string using a regular expression and store the value in a different variable, without changing the original?
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Oracle query to fetch column names
...r= "
SELECT column_name
FROM all_tab_cols
WHERE table_name = 'USERS'
AND owner = '" +_db+ "'
AND column_name NOT IN ( 'PASSWORD', 'VERSION', 'ID' )"
Note that with this approach, you risk SQL injection.
EDIT: Uppercased the table- and column names as these are typically uppercase in Orac...
How do I find where JDK is installed on my windows machine?
...ava -> /System/Library/Frameworks/JavaVM.framework/Versions/Current/Commands/java
If you are using Windows:
c:\> for %i in (java.exe) do @echo. %~$PATH:i
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Reload an iframe with jQuery
I have two iframes on a page and one makes changes to the other but the other iframe doesn't show the change until I refresh. Is there an easy way to refresh this iframe with jQuery?
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How to correctly save instance state of Fragments in back stack?
.... In the fragment, save instance state by overriding onSaveInstanceState() and restore in onActivityCreated():
class MyFragment extends Fragment {
@Override
public void onActivityCreated(Bundle savedInstanceState) {
super.onActivityCreated(savedInstanceState);
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