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Mongoose subdocuments vs nested schema
...o that will completely kill your
application's performance and that's to index this ever-increasing
array. What that means is that every single time the document with
this array is relocated, the number of index entries that need to be
updated is directly proportional to the number of indexe...
Is this a “good enough” random algorithm; why isn't it used if it's faster?
I made a class called QuickRandom , and its job is to produce random numbers quickly. It's really simple: just take the old value, multiply by a double , and take the decimal part.
...
Adding a regression line on a ggplot
... answered Oct 12 '18 at 5:12
qwrqwr
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How can I add an empty directory to a Git repository?
...
You can't. See the Git FAQ.
Currently the design of the git index
(staging area) only permits files to
be listed, and nobody competent enough
to make the change to allow empty
directories has cared enough about
this situation to remedy it.
Directories are added automati...
How to select bottom most rows?
...
What if there is no index on your table to ORDER BY?
– Protector one
Feb 29 '12 at 11:00
...
PHP “php://input” vs $_POST
...{
$keys = $matches[2];
foreach ($keys as $index => $key) :
$key = trim($key);
$key = preg_replace('/^["]/','',$key);
$key = preg_replace('/["]$/','',$key);
$key = preg_replace('/[\s]/'...
Finding what branch a Git commit came from
...ng each hash to see if it contains the desired commit or not.
Find a subsequent merge commit
This is workflow-dependent, but with good workflows, commits are made on development branches which are then merged in. You could do this:
git log --merges <commit>..
to see merge commits that hav...
Closing WebSocket correctly (HTML5, Javascript)
...or maybe on purpose, as the user navigates/page is reloaded. I've posted a question asking what the expected behaviour should be, which browser has it right and how we implement auto-reconnect.
– leggetter
Jun 10 '12 at 1:10
...
Efficient way to insert a number into a sorted array of numbers?
...
Simple (Demo):
function sortedIndex(array, value) {
var low = 0,
high = array.length;
while (low < high) {
var mid = (low + high) >>> 1;
if (array[mid] < value) low = mid + 1;
else high = mid;
}
...
Get parts of a NSURL in objective-c
...nt is the protocol, the host and the first path component. (The element at index 0 in the array returned by -[NSString pathComponents] is simply "/", so you'll want the element at index 1. The other slashes are discarded.)
s...