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Can a program depend on a library during compilation but not runtime?
...st a certain API, making it a compile-time dependency, but then at runtime include an implementation that also includes the API.
There may be fringe cases where the project requires a certain dependency to compile but then the corresponding code is not actually needed, but these will be rare.
On t...
LEFT OUTER joins in Rails 3
...
You can do with this with includes as documented in the Rails guide:
Post.includes(:comments).where(comments: {visible: true})
Results in:
SELECT "posts"."id" AS t0_r0, ...
"comments"."updated_at" AS t1_r5
FROM "posts" LEFT OUTER JOIN "comm...
Get the current script file name
...
When you want your include to know what file it is in (ie. what script name was actually requested), use:
basename($_SERVER["SCRIPT_FILENAME"], '.php')
Because when you are writing to a file you usually know its name.
Edit: As noted by Alec...
Check if an array contains any element of another array in JavaScript
...
Vanilla JS
ES2016:
const found = arr1.some(r=> arr2.includes(r))
ES6:
const found = arr1.some(r=> arr2.indexOf(r) >= 0)
How it works
some(..) checks each element of the array against a test function and returns true if any element of the array passes the test funct...
C++ catching all exceptions
...ay be useful when catching unknown from a third party library) with GCC:
#include <iostream>
#include <exception>
#include <typeinfo>
#include <stdexcept>
int main()
{
try {
throw ...; // throw something
}
catch(...)
{
std::exception_ptr p =...
I need a Nodejs scheduler that allows for tasks at different intervals [closed]
...
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Difference between maven scope compile and provided for JAR packaging
...t is built as a JAR? If it was WAR, I'd understand - the artifact would be included or not in WEB-INF/lib. But in case of a JAR it doesn't matter - dependencies aren't included. They have to be on classpath when their scope is compile or provided . I know that provided dependencies aren't trans...