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in entity framework code first, how to use KeyAttribute on multiple columns
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How to prevent gcc optimizing some statements in C?
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Dietrich EppDietrich Epp
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Which, if any, C++ compilers do tail-recursion optimization?
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edited Jul 4 '18 at 10:53
answered Aug 29 '08 at 7:40
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How to remove array element in mongodb?
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242
Try the following query:
collection.update(
{ _id: id },
{ $pull: { 'contact.phone': { num...
Rails: how do I validate that something is a boolean?
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245
Since Rails 3, you can do:
validates :field, inclusion: { in: [ true, false ] }
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test a file upload using rspec - rails
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Mauricio Gracia Gutierrez
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answered Nov 28 '11 at 13:16
ebsbkebsbk
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How do I get the MIN() of two fields in Postgres?
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edited Jul 26 '19 at 14:39
Victor
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answered No...
Android: Background Image Size (in Pixel) which Support All Devices
...es/screens_support.html
xxxhdpi: 1280x1920 px
xxhdpi: 960x1600 px
xhdpi: 640x960 px
hdpi: 480x800 px
mdpi: 320x480 px
ldpi: 240x320 px
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