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How to play a sound in C#, .NET
...s this one)
Beep (default system sound)
Critical stop ("Hand") - play with error (system message box window plays this one)
Methods of class System.Media.SystemSounds will play them for you.
Implement any other sounds as customizable by your users in Sound control panel
This way users can ...
Remove HTML Tags in Javascript with Regex
...
Try running this on "<img src=bogus onerror=alert(1337)". The first fails because the HTML parser doesn't require that the last tag be closed by a >, and the second fails because image loading starts even before a parsed DOM tree is added to the DOM, and $('&...
Can you issue pull requests from the command line on GitHub?
... Tried doing pullr -n inside the cloned repository. Gave me an error opening .../clonedRepo/undefined/.pullr-token-cache on windows 7. You might want to have some more documentation - like an example usage?
– B T
May 28 '13 at 22:37
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What does ~~ (“double tilde”) do in Javascript?
...om right to left ~~X is like ~(~X) not like (~~)X (which would be a syntax error)
– yunzen
Jun 15 at 13:27
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What does “Changes not staged for commit” mean
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You may see this error when you have added a new file to your code and you're now trying to commit the code without staging(adding) it.
To overcome this, you may first add the file by using git add (git add your_file_name.py) and then commit...
Call a function after previous function is complete
...do stuff
fulfill(result); //if the action succeeded
reject(error); //if the action did not succeed
});
}
This may seem like a significant overhead for this simple example, but for more complex code it is far better than using callbacks. You can easily chain multiple asynchrono...
Getting MAC Address
...ing the output of another program doesn't seem very elegant not to mention error prone.
14 Answers
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Django REST Framework: adding additional field to ModelSerializer
...e field you want to add. No need for @property and source='field' raise an error.
class Foo(models.Model):
. . .
def foo(self):
return 'stuff'
. . .
class FooSerializer(ModelSerializer):
foo = serializers.ReadOnlyField()
class Meta:
model = Foo
fields =...
The model backing the context has changed since the database was created
The error message :
27 Answers
27
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MySQL - UPDATE query based on SELECT Query
... the second doesn't work in some database such as MySQL. You will get this error : You can't specify target table ___ for update in FROM clause SQL.sql
– Jugali Lakota
Nov 9 '16 at 16:20
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