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Best way to define private methods for a class in Objective-C
...e method in Objective-C. However, starting in Objective-C 2.0 (meaning Mac OS X Leopard, iPhone OS 2.0, and later) you can create a category with an empty name (i.e. @interface MyClass ()) called Class Extension. What's unique about a class extension is that the method implementations must go in the...
live output from subprocess command
...
Executive Summary (or "tl;dr" version): it's easy when there's at most one subprocess.PIPE, otherwise it's hard.
It may be time to explain a bit about how subprocess.Popen does its thing.
(Caveat: this is for Python 2.x, although 3.x is similar; and I'm quite fuzzy on the Windows variant. ...
How to remove a project (from the workspace) in PHPStorm?
How can I delete (and not simply close) a project in PHPStorm?
13 Answers
13
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How the single threaded non blocking IO model works in Node.js
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Node.js is built upon libuv, a cross-platform library that abstracts apis/syscalls for asynchronous (non-blocking) input/output provided by the supported OSes (Unix, OS X and Windows at least).
Asynchronous IO
In this programming model open/read/write oper...
How to capture stdout output from a Python function call?
...object.
This tool adds flexibility to existing functions or classes whose
output is hardwired to stdout.
For example, the output of help() normally is sent to sys.stdout. You
can capture that output in a string by redirecting the output to an
io.StringIO object:
f = io.StringIO() ...
Difference between core and processor
...on order, and performing the operations through ALUs. For optimization purposes, a core can also hold on-core caches with copies of frequently used memory chunks.
A CPU may have one or more cores to perform tasks at a given time. These tasks are usually software processes and threads that the OS s...
How to stop flask application without using ctrl-c
...
If you are just running the server on your desktop, you can expose an endpoint to kill the server (read more at Shutdown The Simple Server):
from flask import request
def shutdown_server():
func = request.environ.get('werkzeug.server.shutdown')
if func is None:
raise Run...
Printing 1 to 1000 without loop or conditionals
...
Compile time recursion! :P
#include <iostream>
template<int N>
struct NumberGeneration{
static void out(std::ostream& os)
{
NumberGeneration<N-1>::out(os);
os << N << std::endl;
}
};
template<>
struct NumberGener...
How do I find where JDK is installed on my windows machine?
...
If you are using Linux/Unix/Mac OS X:
Try this:
$ which java
Should output the exact location.
After that, you can set JAVA_HOME environment variable yourself.
In my computer (Mac OS X - Snow Leopard):
$ which java
/usr/bin/java
$ ls -l /usr/bin/java...
Android中Java和JavaScript交互 - 更多技术 - 清泛网 - 专注C/C++及内核技术
...oid.annotation.SuppressLint;
import android.app.Activity;
import android.os.Bundle;
import android.util.Log;
import android.view.Menu;
import android.webkit.JavascriptInterface;
import android.webkit.WebChromeClient;
import android.webkit.WebSettings;
import android.webkit.WebView;
import a...