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Why doesn't String switch statement support a null case?
...icitly by putting the string constant first as in "123test".equals(value). Now we are forced to write our switch statement as in if (value != null) switch (value) {...
– YoYo
Feb 4 '16 at 23:06
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SQL: deleting tables with prefix
...nt generated above will drop all tables in all databases with that prefix. If you want to limit it to a specific database, modify the query to look like this and replace database_name with your own database_name:
SELECT CONCAT( 'DROP TABLE ', GROUP_CONCAT(table_name) , ';' )
AS statement FROM ...
How to find list intersection?
...
If order is not important and you don't need to worry about duplicates then you can use set intersection:
>>> a = [1,2,3,4,5]
>>> b = [1,3,5,6]
>>> list(set(a) & set(b))
[1, 3, 5]
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How to change Vagrant 'default' machine name?
... vb.name = "barhost"
end
end
So there it is. You now know 3 different options you can set and the effects they have. I guess it's a matter of preference at this point? (I'm new to Vagrant, so I can't speak to best practices yet.)
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How to deep watch an array in angularjs?
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in 1.1.x you now have $watchCollection
– Jonathan Rowny
Aug 29 '13 at 18:36
39
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Select the values of one property on all objects of an array in PowerShell
...oth the input collection and output array must fit into memory as a whole.
If the input collection is itself the result of a command (pipeline) (e.g., (Get-ChildItem).Name), that command must first run to completion before the resulting array's elements can be accessed.
In a pipeline where the r...
How to avoid isset() and empty()
... mean you should.
These warnings are there to help you, not to annoy you. If you get a warning "You're trying to work with something that doesn't exist!", your reaction should be "Oops, my bad, let me fix that ASAP." How else are you going to tell the difference between "variables that work just fi...
Receiving “fatal: Not a git repository” when attempting to remote add a Git repo
.../index and I needed to remove .git/index.lock before doing git reset. Fine now
– Ivan
Mar 8 '19 at 11:28
1
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Applying .gitignore to committed files
I have committed loads of files that I now want to ignore. How can I tell git to now ignore these files from future commits?
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Detect iPad users using jQuery?
Is there a way to detect if the current user is using an iPad using jQuery/JavaScript?
4 Answers
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