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Is there a way that I can check if a data attribute exists?
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It will return false if the value exists and is equal to 0. This is quirky.
– Gherman
Apr 7 '15 at 6:42
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How to convert String to long in Java?
... @Belgi. No, it returns java.lang.Long
– Alexander Pogrebnyak
Oct 7 '11 at 22:20
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docker error: /var/run/docker.sock: no such file or directory
I am new to docker. I have a shell script that loads data into impala and I want a docker file that runs builds an image and run the container.
I am on mac, installed boot2docker and have the DOCKER_HOST env set up.
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Vagrant's port forwarding not working [closed]
... with a simple HTTP server you can use -- go to the folder with index.html and run sudo python -m SimpleHTTPServer 80, then try hitting that with curl from both boxes. If that works, then it's probably an Apache configuration issue. I don't have enough experience with Apache to help if that's the ...
Is there a SASS.js? Something like LESS.js?
...l. For instance, if you want to let users play with the look of their page and only save the result they choose back to the server.
– montrealmike
Jun 13 '11 at 20:12
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Set NOW() as Default Value for datetime datatype?
I have two columns in table users namely registerDate and lastVisitDate which consist of datetime data type. I would like to do the following.
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Exec : display stdout “live”
...ocess exited with code ' + code.toString());
});
exec buffers the output and usually returns it when the command has finished executing.
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What is the difference between $(command) and `command` in shell programming?
To store the output of a command as a variable in sh/ksh/bash, you can do either
6 Answers
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What does enumerate() mean?
...is produced with (counter, element); the for loop binds that to row_number and row, respectively.
Demo:
>>> elements = ('foo', 'bar', 'baz')
>>> for elem in elements:
... print elem
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foo
bar
baz
>>> for count, elem in enumerate(elements):
... print count, ele...
How do I simulate a low bandwidth, high latency environment?
I need to simulate a low bandwidth, high latency connection to a server in order to emulate the conditions of a VPN at a remote site. The bandwidth and latency should be tweakable so I can discover the best combination in order to run our software package.
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