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Java: Clear the console
...nect its output channel to the Java process’ output channel, which works starting with Java 7, using inheritIO():
import java.io.IOException;
public class CLS {
public static void main(String... arg) throws IOException, InterruptedException {
new ProcessBuilder("cmd", "/c", "cls").i...
What's the yield keyword in JavaScript?
...ke this simple generator function:
function* process() {
console.log('Start process 1');
console.log('Pause process2 until call next()');
yield;
console.log('Resumed process2');
console.log('Pause process3 until call next()');
let parms = yield {age: 12};
console.log(...
Hidden features of Eclipse [closed]
...ar} is null");
This allows me to quickly add null argument checks at the start of every function (especially ones that merely save the argument into a field or add it into a collection, especially constructors), which is great for detecting bugs early.
See more useful templates at www.tarantsov.c...
How do I get the number of days between two dates in JavaScript?
...ich coerces them into their primitive number value (milliseconds since the start of 1970).
// new Date("dateString") is browser-dependent and discouraged, so we'll write
// a simple parse function for U.S. date format (which does no error checking)
function parseDate(str) {
var mdy = st...
How can I check if an argument is defined when starting/calling a batch file?
I'm trying to use the following validation logic in a batch file but the "usage" block never executes even when no parameter is supplied to the batch file.
...
How to make junior programmers write tests? [closed]
...
For myself, I have started insisting that every bug I find and fix be expressed as a test:
"Hmmm, that's not right..."
Find possible problem
Write a test, show that the code fails
Fix the problem
Show that the new code passes
Loop if the orig...
Enable remote connections for SQL Server Express 2012
...ps anyone else ... this helped, but I still wasn't able to connect until I started the SQL Server Browser service. (Note: I had to go into the Windows "Services" application to do this, because the SQL Server Browser service's startup type was "Disabled" for some reason. Changed the Startup Type to ...
Swift - Split string over multiple lines
...ings are possible as of Swift 4.0, but there are some rules:
You need to start and end your strings with three double quotes, """.
Your string content should start on its own line.
The terminating """ should also start on its own line.
Other than that, you're good to go! Here's an example:
let ...
Need to handle uncaught exception and send log file
...aughtException in your Application subclass.
After catching an exception, start a new activity to ask the user to send
a log.
Extract the log info from logcat's files and write to your
own file.
Start an email app, providing your file as an attachment.
Manifest: filter your activity to be recogni...
How and when to use ‘async’ and ‘await’
...pens here:
Task<int> longRunningTask = LongRunningOperationAsync(); starts executing LongRunningOperation
Independent work is done on let's assume the Main Thread (Thread ID = 1) then await longRunningTask is reached.
Now, if the longRunningTask hasn't finished and it is still running, MyMet...