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How to find the JVM version from a program?
...tem.getProperty("java.version");
Where java.version can be replaced with one of the many other system properties related to the current Java version. Here is a table of them:
Property Value (OpenJDK 12) Value (Oracle JRE 8u201) Value (...
Tricky Google interview question
A friend of mine is interviewing for a job. One of the interview questions got me thinking, just wanted some feedback.
21 A...
jQuery Datepicker onchange event issue
...change (possibly the usual change event, or possibly a datepicker-specific one).
If you like, of course, you can make the change event on the input fire:
$(".date").datepicker({
onSelect: function() {
$(this).change();
}
});
That will fire change on the underlying inputfor any ...
How to format numbers as currency string?
...e of , between each digit, you can use this function:
function formatMoney(number, decPlaces, decSep, thouSep) {
decPlaces = isNaN(decPlaces = Math.abs(decPlaces)) ? 2 : decPlaces,
decSep = typeof decSep === "undefined" ? "." : decSep;
thouSep = typeof thouSep === "undefined" ? "," : thouSep...
How to override trait function and call it from the overridden function?
...
Your last one was almost there:
trait A {
function calc($v) {
return $v+1;
}
}
class MyClass {
use A {
calc as protected traitcalc;
}
function calc($v) {
$v++;
return $this->tra...
Accessing class variables from a list comprehension in the class definition
...ython 2 or 3
y = {x: x for i in range(1)}
The (small) exception; or, why one part may still work
There's one part of a comprehension or generator expression that executes in the surrounding scope, regardless of Python version. That would be the expression for the outermost iterable. In your examp...
Where do I use delegates? [closed]
...ident, but sometimes the VP is unavailable and the
President must send someone else, such as the Secretary of State or
even the First Lady. He does not want to “hardwire” his delegated
authority to a single person; he might delegate this responsibility to
anyone who is able to execute the correc...
Merge pull request to a different branch than default, in Github
...ng the base branch of your original pull request rather than opening a new one with the correct base branch, you’ll be able to keep valuable work and discussion.
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Format a number as 2.5K if a thousand or more, otherwise 900
I need to show a currency value in the format of 1K of equal to one thousand, or 1.1K, 1.2K, 1.9K etc, if its not an even thousands, otherwise if under a thousand, display normal 500, 100, 250 etc, using javascript to format the number?
...
C++, Free-Store vs Heap
...the free-store far better than I could:
Free-store:
The free store is one of the two
dynamic memory areas, allocated/freed
by new/delete. Object lifetime can be
less than the time the storage is
allocated; that is, free store objects
can have memory allocated without
being immediat...