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Test if remote TCP port is open from a shell script
... > /dev/tcp/sfsfdfdff.com/80'
bash: sfsfdfdff.com: Name or service not known
bash: /dev/tcp/sfsfdfdff.com/80: Invalid argument
$ echo $?
1
# Connection not established by the timeout
$ timeout 1 bash -c 'cat < /dev/null > /dev/tcp/google.com/81'
$ echo $?
124
What's happening here is tha...
How do I get the current date and time in PHP?
...
Since PHP 5.2.0 you can use the DateTime() class:
use \Datetime;
$now = new DateTime();
echo $now->format('Y-m-d H:i:s'); // MySQL datetime format
echo $now->getTimestamp(); // Unix Timestamp -- Since PHP 5.3
And to specify the timezone:
$now = new DateTime(null, new D...
bodyParser is deprecated express 4
...structor has been deprecated, as of 2014-06-19.
app.use(bodyParser()); //Now deprecated
You now need to call the methods separately
app.use(bodyParser.urlencoded());
app.use(bodyParser.json());
And so on.
If you're still getting a warning with urlencoded you need to use
app.use(bodyParser....
How can I setup & run PhantomJS on Ubuntu?
...get 1.9.7
If anyone sees any problems with what I've done, please let me know.
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How do I create a multiline Python string with inline variables?
...han implicit. Better to pass in only the variables you need. If you don't know which you need, because the string is supplied by the user, the "variables" should be items in a dict anyway.
– agf
Apr 11 '12 at 19:35
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Javascript parseInt() with leading zeros
... Yes, Firefox and Chrome latest version doesn't have a problem now.
– mythicalcoder
Feb 1 '17 at 10:05
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What are 'get' and 'set' in Swift?
...('error: cannot have family with less than 2 members')
}
}
}
}
Now we can access the members variable as before, by typing instanceOfFamily.members, and thanks to the setter function, we can also set it's value as before, by typing, for example: instanceOfFamily.members = 3. What has cha...
How do you do relative time in Rails?
...irb? I run: require 'active_support' and then try 'time_ago_in_words(Time.now)' but the function isn't found.
– cboettig
Aug 3 '12 at 0:24
2
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Strings in a DataFrame, but dtype is object
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can I get datatype returned as string, somehow. I know I can always use type(df["column"].iloc[0]), but it may so happen that it is nan
– user1953366
Apr 28 '19 at 8:12
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How does one make random number between range for arc4random_uniform()?
so my goal in this codebit is to randomly roll two dice and as we all know your regular die only has 6 sides so I imported Foundation for access to arc4random_uniform(UInt32). I attempted using the range of (1..7) to avoid randomly getting 0 however that returned an error which I didn't enjoy too mu...