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Regular expression to match DNS hostname or IP Address?
Does anyone have a regular expression handy that will match any legal DNS hostname or IP address?
21 Answers
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HTML5 dragleave fired when hovering a child element
...the most obvious solution and only had ONE vote... Come on people, you can do better. I was thinking about that but after seeing the level of sophistication of the first few answers I almost discarded it. Did you have any drawbacks ?
– Arthur Corenzan
Jul 15 '1...
Should you commit .gitignore into the Git repos?
Do you think it is a good practice to commit .gitignore into a Git repo?
5 Answers
5
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Heroku Postgres - terminate hung query (idle in transaction)
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If you have shell access and root or postgres permissions you can also do it from the shell. To "cancel" one can do:
kill -INT 1234
and to "terminate", simply:
kill 1234
DO NOT:
kill -9 1234
... that will often result in the the whole postgres server going down in flames, then you may ...
How to run travis-ci locally
...ange I make to the source in order to run the build. With jenkins you can download jenkins and run locally. Does travis offer something like this?
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How to get input type using jquery?
...d if it is a checkbox I need to now which are checked, and if it is a drop down I need to know which is selected, and I if it is a text/textarea I need to know the values.
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Add a new element to an array without specifying the index in Bash
Is there a way to do something like PHPs $array[] = 'foo'; in bash vs doing:
5 Answers
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Any equivalent to .= for adding to beginning of string in PHP?
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Nope. But you can do
$foo = "bar" . $foo
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How to drop rows of Pandas DataFrame whose value in a certain column is NaN
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Don't drop, just take the rows where EPS is not NA:
df = df[df['EPS'].notna()]
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Swift Beta performance: sorting arrays
... repeatedValue: 0)
for var i = 0; i < n; ++i {
x_swift[i] = CInt(random())
x_c[i] = CInt(random())
}
let swift_start:UInt64 = mach_absolute_time();
quicksort_swift(&x_swift, 0, x_swift.count)
let swift_stop:UInt64 = mach_absolute_time();
let c_start:UInt64 = mach_absolute_time();
qu...