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How to create a directory using nerdtree
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248
When in the NERDTree window, press 'm'; you should see a menu at the bottom. Type in 'a' for add...
Rails - Validate Presence Of Association?
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fl00rfl00r
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mongoDB/mongoose: unique if not null
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As of MongoDB v1.8+ you can get the desired behavior of ensuring unique values but allowing multiple docs without the field by setting the sparse option to true when defining the index. As in:
email : {type: String, trim: true, index: true,...
The 'packages' element is not declared
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348
Taken from this answer.
Close your packages.config file.
Build
Warning is gone!
This is the...
setState vs replaceState in React.js
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138
With setState the current and previous states are merged. With replaceState, it throws out the ...
In Java, are enum types inside a class static?
...sted enums are implicitly static.
From the language specification section 8.9:
Nested enum types are implicitly
static. It is permissable to
explicitly declare a nested enum type
to be static.
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Populate XDocument from String
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edited Aug 8 '11 at 13:43
answered Apr 14 '09 at 13:27
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Check if list contains any of another list
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answered Jun 19 '12 at 0:38
BrokenGlassBrokenGlass
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PDO's query vs execute
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answered Jan 15 '11 at 16:38
GileanGilean
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pandas resample documentation
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answered Jun 8 '13 at 16:20
Matti JohnMatti John
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