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So, JSONP or CORS? [closed]
...egarding the two, but I think I can hit a few key points.
If you need a read-only ajax interface to your servers and you need to support IE<=9, Opera<12, or Firefox<3.5 or various other older or obscure browsers, CORS is out, use JSONP. IE8 and IE9 sorta support CORS but have problems,...
Optimal number of threads per core
...eally parallelizable, so I can run chunks of it on an infinite number of threads and each thread takes the same amount of time.
...
How to write log to file
...cs, os.Open() can't work for log.SetOutput, because it opens the file "for reading:"
func Open
func Open(name string) (file *File, err error) Open opens the named
file for reading. If successful, methods on the returned file can be
used for reading; the associated file descriptor has mo...
What happens when a computer program runs?
... like.
+---------+
| bss | Uninitialized global variables; must be in read-write memory area
+---------+
| data | data segment, for globals and static variables that are initialized
| | (can further be split up into read-only and read-write areas, with
| | read-only areas ...
Serving static files with Sinatra
...e index document.
require 'rubygems'
require 'sinatra'
get '/' do
File.read(File.join('public', 'index.html'))
end
Routes should return a String which become the HTTP response body. File.read opens a file, reads the file, closes the file and returns a String.
...
Correct owner/group/permissions for Apache 2 site files/folders under Mac OS X?
...an access web content)
chmod -R g+rx ~/my/web/root (all web content is now readable/executable/enterable by _www)
All other solutions leave files open to other local users (who are part of the "staff" group as well as obviously being in the "o"/others group). These users may then freely browse an...
Unable to copy file - access to the path is denied
... in my case the reason that folder and the solution turned into ReadOnly and subsequently VS had trouble building it, was because some file failed to synch to GoogleDrive and got somehow locked by that process. So for me to rebuild properly I had to close GoogleDrive and then it built jus...
Ruby: How to post a file via HTTP as multipart/form-data?
...t goals than your own.
Here is a little example on how to use it from the README:
require 'net/http/post/multipart'
url = URI.parse('http://www.example.com/upload')
File.open("./image.jpg") do |jpg|
req = Net::HTTP::Post::Multipart.new url.path,
"file" => UploadIO.new(jpg, "image/jpeg", ...
Write bytes to file
...ck. You'll need add using System.IO at the top of your file if you don't already have it.
public bool ByteArrayToFile(string fileName, byte[] byteArray)
{
try
{
using (var fs = new FileStream(fileName, FileMode.Create, FileAccess.Write))
{
fs.Write(byteArray, 0, ...
ConcurrentHashMap vs Synchronized HashMap
...ock.
Locking the entire collection is a performance overhead. While one thread holds on to the lock, no other thread can use the collection.
ConcurrentHashMap was introduced in JDK 5.
There is no locking at the object level,The locking is at a much finer granularity. For a ConcurrentHashMap, the...