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What is the (function() { } )() construct in JavaScript?
...
It’s an Immediately-Invoked Function Expression, or IIFE for short. It executes immediately after it’s created.
It has nothing to do with any event-handler for any events (such as document.onload).
Consider the part within the first pair of parentheses: (funct...
public friend swap member function
...here is! We can use a friend function, and find it through ADL:
namespace xyz
{
struct myclass
{
friend void swap(myclass&, myclass&);
};
}
When we want to swap something, we associate† std::swap and then make an unqualified call:
using std::swap; // allow use of st...
Portable way to get file size (in bytes) in shell?
On Linux, I use stat --format="%s" FILE , but Solaris I have access to doesn't have stat command. What should I use then?
...
How To Test if Type is Primitive
...e some types that we can think that are primitives, but they aren´t, for example Decimal and String.
Edit 1: Added sample code
Here is a sample code:
if (t.IsPrimitive || t == typeof(Decimal) || t == typeof(String) || ... )
{
// Is Primitive, or Decimal, or String
}
Edit 2: As @SLaks comme...
Add params to given URL in Python
...e I was given a URL.
It might already have GET parameters (e.g. http://example.com/search?q=question ) or it might not (e.g. http://example.com/ ).
...
React.js: Identifying different inputs with one onChange handler
... <div>{total}<br/>
<input type="text" value={this.state.input1} name="input1" onChange={this.handleChange} />
<input type="text" value={this.state.input2} name="input2" onChange={this.handleChange} />
</div>
...
How to implement the Android ActionBar back button?
...er. Here, the solution in pretty code:
public class ServicesViewActivity extends Activity {
@Override
protected void onCreate(Bundle savedInstanceState) {
super.onCreate(savedInstanceState);
// etc...
getActionBar().setDisplayHomeAsUpEnabled(true);
}
@Overri...
Password masking console application
...sing System.Collections.Generic;
using System.Linq;
using System.Text;
namespace ConsoleReadPasswords
{
class Program
{
static void Main(string[] args)
{
Console.Write("Password:");
string password = Orb.App.Co...
How to execute a MySQL command from a shell script?
How can I execute an SQL command through a shell script so that I can make it automated?
14 Answers
...
Returning value from Thread
...o you can use an array. You also need to synchronize the two threads, for example using a CountDownLatch:
public void test()
{
final CountDownLatch latch = new CountDownLatch(1);
final int[] value = new int[1];
Thread uiThread = new HandlerThread("UIHandler"){
@Override
...