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Script to get the HTTP status code of a list of urls?
...curl -o /dev/null --silent --head --write-out '%{http_code}\n' <url>
200
-o /dev/null throws away the usual output
--silent throws away the progress meter
--head makes a HEAD HTTP request, instead of GET
--write-out '%{http_code}\n' prints the required status code
To wrap this up in a com...
Converting NSString to NSDate (and back again)
How would I convert an NSString like " 01/02/10 " (meaning 1st February 2010) into an NSDate ? And how could I turn the NSDate back into a string?
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How to check for a JSON response using RSpec?
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edited Mar 2 '11 at 19:27
answered Mar 1 '11 at 23:55
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How to change indentation mode in Atom?
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219
See Soft Tabs and Tab Length under Settings > Editor Settings.
To toggle indentation modes...
How to get row from R data.frame
...is, for example:
#Add your data
x <- structure(list(A = c(5, 3.5, 3.25, 4.25, 1.5 ),
B = c(4.25, 4, 4, 4.5, 4.5 ),
C = c(4.5, 2.5, 4, 2.25, 3 )
),
.Names = c("A", "B", "C"),
class = "da...
How to get a float result by dividing two integer values using T-SQL?
... like to specify the number of decimal digits when I do a division between 2 integer numbers like:
8 Answers
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Create table (structure) from existing table
...* Into <DestinationTableName> From <SourceTableName> Where 1 = 2
Note that this will not copy indexes, keys, etc.
If you want to copy the entire structure, you need to generate a Create Script of the table. You can use that script to create a new table with the same structure. You can...
Patterns for handling batch operations in REST web services?
...o delete several messages at once.
DELETE /mail?&id=0&id=1&id=2
It's a little more complicated to batch update partial resources, or resource attributes. That is, update each markedAsRead attribute. Basically, instead of treating the attribute as part of each resource, you treat it as...
How does java do modulus calculations with negative numbers?
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edited Dec 9 '10 at 23:18
answered Dec 9 '10 at 22:00
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Generator Expressions vs. List Comprehension
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294
John's answer is good (that list comprehensions are better when you want to iterate over somet...