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Why does the JVM still not support tail-call optimization?
...-call optimization.
But although it is well known how to automatically transform a tail-recursive function into a simple loop, the Java specification doesn't require that this transformation be made. Presumably, one reason it is not a requirement is that, in general, the transformation can't be ...
The easiest way to transform collection to array?
...<Foo> . What is the best (shortest in LoC in current context) way to transform it to Foo[] ? Any well-known libraries are allowed.
...
What are C++ functors and their uses?
...f values)
std::vector<int> out(in.size());
// Pass a functor to std::transform, which calls the functor on every element
// in the input sequence, and stores the result to the output sequence
std::transform(in.begin(), in.end(), out.begin(), add_x(1));
assert(out[i] == in[i] + 1); // for all...
Changing every value in a hash in Ruby
...
If you use Ruby 2.4+, it's even easier to use #transform_values! as pointed out by sschmeck (stackoverflow.com/a/41508214/6451879).
– Finn
Jan 9 '18 at 18:35
...
How do I add a tool tip to a span element?
...]:before,
[data-tooltip-position="bottom"]:before {
left: 50%;
-ms-transform: translateX(-50%);
-moz-transform: translateX(-50%);
-webkit-transform: translateX(-50%);
transform: translateX(-50%);
}
/* Dynamic vertical centering */
[data-tooltip-position="right"]:before,
[data-too...
How to position a table at the center of div horizontally & vertically
... call it wrapper).
Declare the table itself, inside wrapper div.
Apply CSS transform to change the "registration point" of the wrapper object to it's center.
Move the wrapper object to the center of the parent object.
#content {
width: 5em;
height: 5em;
border: 1px solid;
border-co...
Is XSLT worth it? [closed]
...t (educational course material) in a simplified format which would then be transformed into HTML via XSLT. I played around (struggled) with it for a while and got it to a very basic level but then was too annoyed by the limitations I was encountering (which may well have been limitations of my knowl...
Pandas count(distinct) equivalent
...in', 'max', 'count' or 'mean' etc.
df.groupby('YEARMONTH')['CLIENTCODE'].transform('nunique') #count(distinct)
df.groupby('YEARMONTH')['CLIENTCODE'].transform('min') #min
df.groupby('YEARMONTH')['CLIENTCODE'].transform('max') #max
df.groupby('YEARMONTH')['CLIENTCODE'].transform('mean') ...
Center HTML Input Text Field Placeholder
...
::-webkit-input-placeholder {
font-size: 14px;
color: #d0cdfa;
text-transform: uppercase;
text-transform: uppercase;
text-align: center;
font-weight: bold;
}
:-moz-placeholder {
font-size:14px;
color: #d0cdfa;
text-transform: uppercase;
text-align: center;
font-weight: bold;
}
::-moz...
any tool for java object to object mapping? [closed]
...ing has an excellent support for PropertyEditors, that can also be used to transform Objects to/from Strings.
Dozer: Dozer is a powerful, yet simple Java Bean to Java Bean mapper that recursively copies data from one object to another. Typically, these Java Beans will be of different complex types. ...