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Singleton by Jon Skeet clarification
...at the post about beforeinitfield and type initialization tell you is that if you have no static constructor, the runtime can initialize it at any time (but before you use it). If you do have a static constructor, your code in the static constructor might initialize the fields, which means that the ...
Bash script to set up a temporary SSH tunnel
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If you use it in a script you need to wait for the control socket for a few seconds to become available. My solution: while [ ! -e $ctrl_socket ]; do sleep 0.1; done
– Adam Wallner
Feb 1...
How do Trigonometric functions work?
...lems they solve. But they have always been presented to me as a black box. If you need the Sine or Cosine of something, you hit the sin or cos button on your calculator and you're set. Which is fine.
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Disable Required validation attribute under certain circumstances
I was wondering if it is possible to disable the Required validation attribute in certain controller actions. I am wondering this because on one of my edit forms I do not require the user to enter values for fields that they have already specified previously. However I then implement logic that when...
How to list all the available keyspaces in Cassandra?
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If you want to do this outside of the cqlsh tool you can query the schema_keyspaces table in the system keyspace. There's also a table called schema_columnfamilies which contains information about all tables.
The DESCRIBE an...
Hibernate lazy-load application design
...ersistence is a myth, since application always should take care of entity lifecycle and of size of object graph being loaded.
Note that Hibernate can't read thoughts, therefore if you know that you need a particular set of dependencies for a particular operation, you need to express your intentions...
I do not want to inherit the child opacity from the parent in CSS
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@Madmartigan Yes, if you want the text in the parent div to have opacity, then you would have to set the opacity of the text with a span. You can use a polyfill to make it backwards compatible, or you can use a png.
– Dan...
How to remove specific element from an array using python
I want to write something that removes a specific element from an array. I know that I have to for loop through the array to find the element that matches the content.
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Why doesn't delete set the pointer to NULL?
...setting of the pointer to NULL after delete is not part of the standard. If this gets taken care of then many of the crashes due to an invalid pointer would not occur. But having said that I can think of couple of reasons why the standard would have restricted this:
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Android: ScrollView force to bottom
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This doesn't work if the layout size has changed right before calling it. It needs to be posted instead.
– MLProgrammer-CiM
Apr 9 '15 at 15:32
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