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How do you create nested dict in Python?
...after lookup with missing key. no exception raised:\n', nest)
# Instead, convert back to normal dict...
nest_d = nest.to_dict(nest)
try:
print('converted to normal dict. Trying to lookup Wrong_key2')
nest_d['outer1']['wrong_key2']
except KeyError as e:
print('exception missing key', e)...
Is there a C# case insensitive equals operator?
...ore case string comparison. This is also the fastest way, much faster than converting the strings to lower or upper case and comparing them after that.
I tested the performance of both approaches and the ordinal ignore case string comparison was more than 9 times faster! It is also more reliable th...
Ruby capitalize every word first letter
...as"
"kirkDouglas"
"KirkDouglas"
#titleize gotchas
Rails's titleize will convert things like dashes and underscores into spaces and can produce other unexpected results, especially with case-sensitive situations as pointed out by @JamesMcMahon:
"hEy lOok".titleize #=> "H Ey Lo Ok"
because it...
Backing beans (@ManagedBean) or CDI Beans (@Named)?
...
I've created beans.xml, converted @ManagedBean backing beans to @Named, and converted @ManagedProperty to @Inject. All is well with the world. However, if I change my @EJB annotations to @Inject, deployment fails (org.jboss.weld.exceptions.Deploymen...
int a[] = {1,2,}; Weird comma allowed. Any particular reason?
...ended at a later date. Consider what's required to add an extra entry to:
int a[] = {
1,
2,
3
};
... you have to add the comma to the existing line and add a new line. Compare that with the case where the three already has a comma after it, where you just have to add a line. Likewise if ...
XSD: What is the difference between xs:integer and xs:int?
I have started to create XSD and found in couple of examples for xs:integer and xs:int .
3 Answers
...
How can I propagate exceptions between threads?
We have a function which a single thread calls into (we name this the main thread). Within the body of the function we spawn multiple worker threads to do CPU intensive work, wait for all threads to finish, then return the result on the main thread.
...
Bash syntax error: unexpected end of file
...m on StackOverflow
Open the file in Vim and try
:set fileformat=unix
Convert eh line endings to unix endings and see if that solves the
issue. If editing in Vim, enter the command :set fileformat=unix and
save the file. Several other editors have the ability to convert line
endings, such...
How would you implement an LRU cache in Java?
...LruCache<A, B> extends LinkedHashMap<A, B> {
private final int maxEntries;
public LruCache(final int maxEntries) {
super(maxEntries + 1, 1.0f, true);
this.maxEntries = maxEntries;
}
/**
* Returns <tt>true</tt> if this <code>LruCach...
What's the rationale for null terminated strings?
... pointers can do.
the core language just include minimal syntaxic sugar to convert
something between double quotes to a
bunch of chars (really a bunch of
bytes). In some cases it can be used
to initialize things completely
unrelated with text. For instance xpm
image file format is a valid C source
t...