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How can I plot with 2 different y-axes?
...xes on the same plot
(some material originally by Daniel Rajdl 2006/03/31 15:26)
Please note that there are very few situations where it is appropriate to use two different scales on the same plot. It is very easy to mislead the viewer of the graphic. Check the following two examples and comments ...
How do you delete an ActiveRecord object?
...
It's destroy and destroy_all methods, like
user.destroy
User.find(15).destroy
User.destroy(15)
User.where(age: 20).destroy_all
User.destroy_all(age: 20)
Alternatively you can use delete and delete_all which won't enforce :before_destroy and :after_destroy callbacks or any dependent associ...
jquery loop on Json data using $.each
...dd eval(data)
– Rippo
Feb 26 '10 at 15:01
in the function "httpData" in jQuery you can see a called window["eval"] fo...
Ruby Hash to array of values
...which they occur ?
– stack1
Jun 24 '15 at 22:18
add a comment
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ERROR: Error installing capybara-webkit:
...t4 on RHEL6.
– E-rich
Oct 24 '12 at 15:24
2
I already had qt installed and it was still failing. ...
mysql create user if not exists
... holes. Be aware.
– Ascherer
Feb 7 '15 at 21:55
1
Its only insecure if you don't specify a passwo...
Set multiple properties in a List ForEach()?
...
answered Feb 2 '12 at 15:17
Justin NiessnerJustin Niessner
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Loop through Map in Groovy?
... did you know this?
– smeeb
Oct 24 '15 at 10:40
10
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MySQL convert date string to Unix timestamp
...convert DATETIME to UNIX timestamp:
SELECT UNIX_TIMESTAMP(STR_TO_DATE('Apr 15 2012 12:00AM', '%M %d %Y %h:%i%p'))
Here's an example of how to change date format:
SELECT FROM_UNIXTIME(UNIX_TIMESTAMP(STR_TO_DATE('Apr 15 2012 12:00AM', '%M %d %Y %h:%i%p')),'%m-%d-%Y %h:%i:%p')
Documentation: UNIX_TIMES...
What is the optimal Jewish toenail cutting algorithm?
...cking with 4 sequences.
– Jakob
Oct 15 '11 at 7:36
3
One would also need to consider missing toes...