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What are best practices for validating email addresses on iOS 2.0
...is the cleanest way to validate an email address that a user enters on iOS 2.0?
13 Answers
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How to sort git tags by version string order of form rc-X.Y.Z.W?
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Use version sort
git tag -l | sort -V
or for git version >= 2.0
git tag -l --sort=v:refname
git tag -l --sort=-v:refname # reverse
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How to convert float to int with Java
...f)
round (the closest integer to given float)
i = Math.round(f);
f = 2.0 -> i = 2 ; f = 2.22 -> i = 2 ; f = 2.68 -> i = 3
f = -2.0 -> i = -2 ; f = -2.22 -> i = -2 ; f = -2.68 -> i = -3
note: this is, by contract, equal to (int) Math.floor(f + 0.5f)
truncate (i.e. dro...
“Missing compiler required member” error being thrown multiple times with almost no changes to code
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This error usually means either your project is compiling against .NET 2.0 or you aren't referencing the correct version of System.Core.dll
For a near duplicate question, see Error when using extension methods in C#
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Function to calculate distance between two coordinates
... lat2 = Double.Parse(lat2)
'conversion to radian
lat1 = (lat1 * 2.0 * Math.PI) / 60.0 / 360.0
long1 = (long1 * 2.0 * Math.PI) / 60.0 / 360.0
lat2 = (lat2 * 2.0 * Math.PI) / 60.0 / 360.0
long2 = (long2 * 2.0 * Math.PI) / 60.0 / 360.0
' use to different earth axis length
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What is the difference between '/' and '//' when used for division?
...t the 3.x behavior.
Regardless of the future import, 5.0 // 2 will return 2.0 since that's the floor division result of the operation.
You can find a detailed description at https://docs.python.org/whatsnew/2.2.html#pep-238-changing-the-division-operator
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A potentially dangerous Request.Form value was detected from the client
...ometimes it's necessary to also add <httpRuntime requestValidationMode="2.0" /> to web.config (reference).
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Path to Powershell.exe (v 2.0)
Where is the Powershell (version 2.0) located? What is the path to Powershell.exe? I have Windows Server 2008 and Powershell installed. When I look at this folder:
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How can I run PowerShell with the .NET 4 runtime?
... has nasty side-effects if you're doing multi-targeting (i.e. writing .NET 2.0 apps in VS2010). Beware.
– Todd Sprang
Dec 16 '11 at 19:14
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Pandas index column title or name
...'Index Title': ['Apples', 'Oranges', 'Puppies', 'Ducks'],'Column 1': [1.0, 2.0, 3.0, 4.0]}
df = pd.DataFrame(d).set_index('Index Title')
print (df)
Column 1
Index Title
Apples 1.0
Oranges 2.0
Puppies 3.0
Ducks 4.0
print (df.index.nam...