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What does the property “Nonatomic” mean?
...
Take a look at the Apple Docs.
Basically, if you say nonatomic, and you generate the accessors using @synthesize, then if multiple threads try to change/read the property at once, badness can happen. You can get partially-written values or ove...
Checking if a string is empty or null in Java [duplicate]
...ementation 'org.apache.commons:commons-text:1.7' } in build.gradle (Module app). If there is already a dependencies block then just insert a new line with this dependency. This is the latest recommended version, as of Feb '20 (see stackoverflow.com/a/55567755/1541141). Then clean and/or sync your pr...
How to make a HTTP request using Ruby on Rails?
...o caution against doing so as you will add more dependencies to your rails app. More dependencies means more memory consumption and also potentially larger attack surface. Using Net::HTTP is cumbersome but the trade off isn't worth it.
– Jason Yeo
Apr 12 '16 at...
What is the best way to implement a “timer”? [duplicate]
...ple.");
while(Console.Read() != 'q');
}
// Specify what you want to happen when the Elapsed event is raised.
private static void OnTimedEvent(object source, ElapsedEventArgs e)
{
Console.WriteLine("Hello World!");
}
The Elapsed event will be raised every X amount of milliseconds, spe...
“Missing compiler required member” error being thrown multiple times with almost no changes to code
...at. Library now builds :) Q. Can I use this .NetStandard library in Linux app, given the Microsofct reference?
– David Jones
Aug 27 '19 at 12:10
...
How to declare string constants in JavaScript? [duplicate]
...ipt method, but instead relative to your domain path). For example, for an app at localhost:8080/myDomain:
$(document).ready(function() {
$.getScript('/myDomain/myScriptsDir/constants.js');
...
then, if you have this in a file called constants.js:
var jsEnum = { //not really an enum, jus...
CreateProcess error=206, The filename or extension is too long when running main() method
...to use one of the attached patches in the bug report document
Use an own wrapper e.g. ant
Update: After July 2014, there is a better way (thanks to @Brad-Mace's answer below:
If you have created your own build file instead of using Project -> Generate Javadocs, then you can add useexternalfile="...
VC DDE（Dynamic Data Exchange）与EXCEL连接 - C/C++ - 清泛网 - 专注C/C++及内核技术
...案例如下：
// smdata.cpp : Defines the entry point for the console application.
//
#include "stdafx.h"
#include "windows.h"
#include <string.h>
#include "ddeml.h"
#include "stdio.h"
HDDEDATA CALLBACK DdeCallback(
UINT uType, // Transaction type.
UINT uFmt, // Clip...
Use “ENTER” key on softkeyboard instead of clicking button
...rActionListener for the EditText element. In your listener, respond to the appropriate IME action ID defined in the EditorInfo class, such as IME_ACTION_SEND. For example:
EditText editText = (EditText) findViewById(R.id.search);
editText.setOnEditorActionListener(new OnEditorActionListener() {
...
How can I determine the current line number in JavaScript?
...al source code, so it has the wrong line numbers. (That's probably what's happening to Hermann.) Does anyone know how to make javascript see the original PHP source code line numbers? The solution probably involves some kind of "source map" generation, but I can't find how to do it. Surely this is a...