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Where is Android Studio layout preview?
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Select MainActivity.java file from the left pane, as shown in the red colored rectangle.
Left click the XML Tag icon as shown in the red colored circle.
Select the "activity_main.xml(layout)" option shown highlighted in the b...
AppSettings get value from .config file
...iguration
Go to your Solution Explorer and right click on References and select Add reference. Select the Assemblies tab and search for Configuration.
Here is an example of my App.config:
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<startup>
<suppo...
A non-blocking read on a subprocess.PIPE in Python
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fcntl, select, asyncproc won't help in this case.
A reliable way to read a stream without blocking regardless of operating system is to use Queue.get_nowait():
import sys
from subprocess import PIPE, Popen
from threading import T...
Relative imports in Python 2.7
...ly, see the other answers) or simply create a "main script" main.py in the root directory of your project and put all modules to be imported in subdirectories. main.py can then access all modules directly through their package names (= the names of the respective folders they're in).
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Why doesn't await on Task.WhenAll throw an AggregateException?
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Excellent clear answer, this should IMO be the selected one.
– bytedev
Feb 22 '18 at 17:16
3
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Using Kafka as a (CQRS) Eventstore. Good idea?
...complete microservice platform available which is coming back to pure Java roots:
https://github.com/networknt
If you wonder about performance, you can compare yourself with existing benchmark suite.
https://github.com/networknt/microservices-framework-benchmark
Don't use Kafka at all :-)) It is...
How do I hide an element on a click event anywhere outside of the element?
... you have other elements inside .myDiv element. For example, if you have a select dropdown inside .myDiv. When you click the select, it will think youre clicking outside the box.
– CodeGodie
Nov 22 '16 at 15:13
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How do I view events fired on an element in Chrome DevTools?
... the debugger
Similarly, you can right click on the target element -> select "inspect element" Scroll down on the right side of the dev frame, at the bottom is 'event listeners'. Expand the tree to see what events are attached to the element. Not sure if this works for events that are handle...
How to list all properties of a PowerShell object
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You can also use:
Get-WmiObject -Class "Win32_computersystem" | Select *
This will show the same result as Format-List * used in the other answers here.
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Find difference between timestamps in seconds in PostgreSQL
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Try:
SELECT EXTRACT(EPOCH FROM (timestamp_B - timestamp_A))
FROM TableA
Details here: EXTRACT.
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