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Allow user to set up an SSH tunnel, but nothing else
I'd like to allow a user to set up an SSH tunnel to a particular machine on a particular port (say, 5000), but I want to restrict this user as much as possible. (Authentication will be with public/private keypair).
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Removing items from a list [duplicate]
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You need to use Iterator and call remove() on iterator instead of using for loop.
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Visual Studio Immediate window: how to see more than the first 100 items
..., If you add your object to the watch window. Expand the properties, where all are displayed. Then Ctrl-A and Copy. You can then paste in excel to get an organized list of properties and their values.
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How to set auto increment primary key in PostgreSQL?
...hould always be using a primary key on your table because postgresql internally uses hash table structures to increase the speed of inserts, deletes, updates and selects. If a primary key column (which is forced unique and non-null) is available, it can be depended on to provide a unique seed for t...
Pass a data.frame column name to a function
...l_name,col1,col2){
df$col_name <- df$col1 + df$col2
df
}
#Call foo() like this:
foo(dat,z,x,y)
The problem here is that df$col1 doesn't evaluate the expression col1. It simply looks for a column in df literally called col1. This behavior is described in ?Extract under the secti...
How to keep the spaces at the end and/or at the beginning of a String?
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\u0020 is generally the better solution. &#032; requires that you parse html and can be randomly ignored in some cases resulting in no space
– HaydenKai
Jul 21 '16 at 12:05
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Convert date to another timezone in JavaScript
...n clearly says that the only timezone that is required to be recognized in all implementations is UTC. (stackoverflow.com/questions/10087819/…) Clicking the [Run code snippet] button in IE11 produces an error.
– Vivian River
Jan 25 '19 at 19:37
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Entity Framework code first unique column
...s:
SQL Server retains the 900-byte limit for the maximum total size of all index key columns."
(from: http://msdn.microsoft.com/en-us/library/ms191241.aspx )
You can solve this by setting a maximum string length on your model:
[StringLength(450)]
Your model will look like this now in EF CF...
Does the GitHub traffic graph include your own views?
I have several projects on GitHub, and they all have the traffic graph where I can view how much traffic my repository is getting.
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.toArray(new MyClass[0]) or .toArray(new MyClass[myList.size()])?
... the result may be different.
Benchmark results (score in microseconds, smaller = better):
Benchmark (n) Mode Samples Score Error Units
c.a.p.SO29378922.preSize 1 avgt 30 0.025 ▒ 0.001 us/op
c.a.p.SO29378922.preSize 100 avgt 30 0.15...