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How to rollback a specific migration?
I have the following migration file db\migrate\20100905201547_create_blocks.rb
14 Answers
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How to drop column with constraint?
...utomated dropping of constraints script:
DECLARE @sql NVARCHAR(MAX)
WHILE 1=1
BEGIN
SELECT TOP 1 @sql = N'alter table tbloffers drop constraint ['+dc.NAME+N']'
from sys.default_constraints dc
JOIN sys.columns c
ON c.default_object_id = dc.object_id
WHERE
dc.parent_o...
What does the double colon (::) mean in CSS?
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112
It means pseudo element selector. It means the element to the right doesn't exist in the norma...
How to parse unix timestamp to time.Time
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"time"
"strconv"
)
func main() {
i, err := strconv.ParseInt("1405544146", 10, 64)
if err != nil {
panic(err)
}
tm := time.Unix(i, 0)
fmt.Println(tm)
}
Output:
2014-07-16 20:55:46 +0000 UTC
Playground: http://play.golang.org/p/v_j6UIro7a
Edit:
Changed from...
Why is arr = [] faster than arr = new Array?
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195
Further expanding on previous answers...
From a general compilers perspective and disregardin...
how to iterate through dictionary in a dictionary in django template?
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Lets say your data is -
data = {'a': [ [1, 2] ], 'b': [ [3, 4] ],'c':[ [5,6]] }
You can use the data.items() method to get the dictionary elements. Note, in django templates we do NOT put (). Also some users mentioned values[0] does not work, if that is the case t...
Swift: Pass array by reference?
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edited Nov 15 '17 at 21:23
iwasrobbed
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Do using statements and await keywords play nicely in c#
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1 Answer
1
Active
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Is it Linq or Lambda?
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135
This is LINQ (using query syntax):
var _Results = from item in _List
where it...
Convert blob URL to normal URL
My page generates a URL like this: "blob:http%3A//localhost%3A8383/568233a1-8b13-48b3-84d5-cca045ae384f" How can I convert it to a normal address?
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