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What is non-blocking or asynchronous I/O in Node.js?
...synchronous execution refers to execution that doesn't run in the sequence it appears in the code. In the following example, the synchronous operation causes the alerts to fire in sequence. In the async operation, while alert(2) appears to execute second, it doesn't.
Synchronous: 1,2,3
alert(1...
catch all unhandled exceptions in ASP.NET Web Api
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This is now possible with WebAPI 2.1 (see the What's New):
Create one or more implementations of IExceptionLogger. For example:
public class TraceExceptionLogger : ExceptionLogger
{
public override void Log(ExceptionLoggerContext context)
...
how to show alternate image if source image is not found? (onerror working in IE but not in mozilla)
.... The user's browser will be stuck in an endless loop if the onerror image itself generates an error.
EDIT
To avoid endless loop, remove the onerror from it at once.
<img src="imagenotfound.gif" alt="Image not found" onerror="this.onerror=null;this.src='imagefound.gif';" />
By calling th...
execJs: 'Could not find a JavaScript runtime' but execjs AND therubyracer are in Gemfile
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Ubuntu Users:
I had the same problem and I fixed it by installing nodejson my system independent of the gem.
on ubuntu its: sudo apt-get install nodejs
I'm using 64bit ubuntu 11.10
update:
From @Galina 's answer below I'm guessing that the latest version of nodejs is re...
Unable to authenticate with Git Bash to Visual Studio Team Services
I am unable to run any commands against my remote repository at Visual Studio Team Services (VSTS) because authentication fails.
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Linear Layout and weight in Android
... this funny weight value in the Android documentations.
Now I want to try it for the first time but it isn't working at all.
...
How can I remove the string “\n” from within a Ruby string?
...into the text.
While on the other hand, single quotes ' treat the string literally, so there's no expansion, replacement, interpolation or what have you.
In this particular case, it's better to use either the .delete or .tr String method to delete the newlines.
See here for more info
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LINQ, Where() vs FindAll()
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FindAll() is a function on the List<T> type, it's not a LINQ extension method like Where. The LINQ extension methods work on any type that implements IEnumerable, whereas FindAll can only be used on List<T> instances (or instances of classes that inherit from it, ...
Is it possible dynamically to add String to String.xml in Android?
Is it possible to have placeholders in string values in string.xml that can be assigned values at run time?
13 Answers
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notifyDataSetChange not working from custom adapter
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it's about a BaseAdapter and this adapter does not know to which data it is binded... so if I have an custom object and use custom functions of this object (like custObject.getCount() and custObject.getChildAt(int i) for exam...