大约有 22,590 项符合查询结果（耗时：0.0229秒） [XML]
Why is React's concept of Virtual DOM said to be more performant than dirty model checking?
...
I recently read a detailed article about React's diff algorithm here: http://calendar.perfplanet.com/2013/diff/. From what I understand, what makes React fast is:
Batched DOM read/write operations.
Efficient update of sub-tree only.
Compared to dirty-check, the key differences IMO are:
Mo...
Using GPU from a docker container?
...-recv-keys 36A1D7869245C8950F966E92D8576A8BA88D21E9
$ sudo sh -c "echo deb https://get.docker.com/ubuntu docker main > /etc/apt/sources.list.d/docker.list"
$ sudo apt-get update && sudo apt-get install lxc-docker
Find your nvidia devices
ls -la /dev | grep nvidia
crw-rw-rw- 1 root ro...
What makes Lisp macros so special?
...n't think I've ever seen Lisp macros explained better than by this fellow: http://www.defmacro.org/ramblings/lisp.html
share
|
improve this answer
|
follow
|
...
What is the fastest/most efficient way to find the highest set bit (msb) in an integer in C?
...ion (N) of the highest set bit is the integer log base 2 of that integer.
http://graphics.stanford.edu/~seander/bithacks.html#IntegerLogObvious
unsigned int v;
unsigned r = 0;
while (v >>= 1) {
r++;
}
This "obvious" algorithm may not be transparent to everyone, but when you realize th...
LinkedBlockingQueue vs ConcurrentLinkedQueue
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
When should I use a composite index?
... have written another blog; it compares 5 ways of doing lat/lng searches: http://mysql.rjweb.org/doc.php/latlng#representation_choices (It references the link given above as one of the 5.) One of the other ways is this, and it points out that they are optimal for the particular case:
INDEX(geola...
Find a Git branch containing changes to a given file
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
What does new self(); mean in PHP?
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
Python: fastest way to create a list of n lists
...eUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454 46.2665 7.94324 4...
phpunit mock method multiple calls with different arguments
...
It seems Mockery (https://github.com/padraic/mockery) supports this. In my case I want to check that 2 indices are created on a database:
Mockery, works:
use Mockery as m;
//...
$coll = m::mock(MongoCollection::class);
$db = m::mock(MongoD...