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Excel Date to String conversion
... Full reference to the TEXT function especially to know how to set formats: see Guidelines for date and time formats on this page office.microsoft.com/en-us/excel-help/…
– codea
Sep 9 '13 at 21:07
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Extract a substring according to a pattern
... = TRUE)$V2
## [1] "E001" "E002" "E003"
4) substring
This assumes second portion always starts at 4th character (which is the case in the example in the question):
substring(string, 4)
## [1] "E001" "E002" "E003"
4a) substring/regex
If the colon were not always in a known position we could modify ...
iOS 7 UIBarButton back button arrow color
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To change the back button chevron color for a specific navigation controller*:
self.navigationController.navigationBar.tintColor = [UIColor whiteColor];
*If you are using an app with more than 1 navigation controller, and you want this chevron color to apply ...
How do I check if the mouse is over an element in jQuery?
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Set a timeout on the mouseout to fadeout and store the return value to data in the object. Then onmouseover, cancel the timeout if there is a value in the data.
Remove the data on callback of the fadeout.
It is actually less expensive to use mouseenter/mouseleave becaus...
How to set a default entity property value with Hibernate
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With annotations: @org.hibernate.annotations.Entity(dynamicInsert = true)
– homaxto
Mar 14 '11 at 10:04
10
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Is it possible to decompile a compiled .pyc file into a .py file?
Is it possible to get some information out of the .pyc file that is generated from a .py file?
7 Answers
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How to specify a editor to open crontab file? “export EDITOR=vi” does not work
I'm using Red Hat Enterprise Linux 5, and I want to set the vim editor to edit the crontab file.
8 Answers
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Sorting a tab delimited file
I have a data with the following format:
10 Answers
10
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CSS Child vs Descendant selectors
I am a bit confused between these 2 selectors.
8 Answers
8
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How to get a random value from dictionary in python
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One way would be:
import random
d = {'VENEZUELA':'CARACAS', 'CANADA':'OTTAWA'}
random.choice(list(d.values()))
EDIT: The question was changed a couple years after the original post, and now asks for a pair, rather than a single item. The fina...