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Java 8 Iterable.forEach() vs foreach loop
... an optimization, but critical when you consider that some sequences (like reading the lines in a file) may have side-effects, or you may have an infinite sequence."
Might execute in parallel, which is a horrible, horrible thing for all but the 0.1% of your code that needs to be optimized. Any para...
How do you find the disk size of a Postgres / PostgreSQL table and its indexes
... ELSE 'N'
END AS UNIQUE,
idx_scan AS number_of_scans,
idx_tup_read AS tuples_read,
idx_tup_fetch AS tuples_fetched
FROM pg_tables t
LEFT OUTER JOIN pg_class c ON t.tablename=c.relname
LEFT OUTER JOIN
( SELECT c.relname AS ctablename, ipg.relname AS indexname, x.indnatts AS numbe...
When to choose checked and unchecked exceptions
...tside their control has caused the operation to fail. For example, you try reading a file but someone deletes it between the time you check if it exists and the time the read operation begins. By declaring a checked exception, you are telling the caller to anticipate this failure.
Reasonable to reco...
Section vs Article HTML5
...u have a number of
items of content, each of which would be suitable for reading on their
own, and would make sense to syndicate as separate items in an RSS
feed, then <article> is suitable for marking them up.
In our example, <section id="main"> contains blog entries. Each bl...
How can i tell if an object has a key value observer attached
...avior, however, as I haven't seen it documented. Also, I don't know how to read observationInfo to get specific observers.
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Naming Classes - How to avoid calling everything a “Manager”? [closed]
A long time ago I have read an article (I believe a blog entry) which put me on the "right" track on naming objects: Be very very scrupulous about naming things in your program.
...
Catch Ctrl-C in C
... rules that need to be obeyed in order not to break something else. Please read the comments below.
The sample code from above:
#include <stdio.h>
#include <signal.h>
#include <stdlib.h>
void INThandler(int);
int main(void)
{
signal(SIGINT, INThandler);
while ...
What are the nuances of scope prototypal / prototypical inheritance in AngularJS?
...e parentScope object properties with the same names.
Takeaways:
If we read childScope.propertyX, and childScope has propertyX, then the prototype chain is not consulted.
If we set childScope.propertyX, the prototype chain is not consulted.
One last scenario:
delete childScope.anArray
childSc...
Is there a way for multiple processes to share a listening socket?
...ERR handle (assuming you didn't want to use it for anything else).
EDIT:
Reading the MDSN library , it appears that WSADuplicateSocket is a more robust or correct mechanism of doing this; it is still nontrivial because the parent/child processes need to work out which handle needs to be duplicated...
How can I reconcile detached HEAD with master/origin?
...h .git/HEAD, and when we wanted to find out which branch we are on, we did readlink .git/HEAD. But symbolic links are not entirely portable, so they are now deprecated and symbolic refs (as described above) are used by default."
– Dmitry Minkovsky
Aug 2 '13 at ...