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How can I count occurrences with groupBy?
...answered Jun 5 '17 at 21:37
user_3380739user_3380739
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How do I create a unique ID in Java? [duplicate]
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It's not all that human readable tho...
– pjp
Sep 7 '09 at 14:56
13
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How to validate an email address in PHP
...($email, FILTER_VALIDATE_EMAIL)) {
// invalid emailaddress
}
Additionally you can check whether the domain defines an MX record:
if (!checkdnsrr($domain, 'MX')) {
// domain is not valid
}
But this still doesn't guarantee that the mail exists. The only way to find that out is by sending ...
How can I pass an argument to a PowerShell script?
...te -eq 1)
{
$iTunes.PlayerPosition = $iTunes.PlayerPosition + $step
}
Call it with
powershell.exe -file itunesForward.ps1 -step 15
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What is a Question Mark “?” and Colon “:” Operator Used for? [duplicate]
...l of optimization, and if you do, you probably want to use attributes like __builtin_expect anyway.
– Brendan Long
Dec 4 '18 at 17:40
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Can I change the color of auto detected links on UITextView?
...d the selected text color.
iOS 7 also added a new property to UITextView called linkTextAttributes which would appear to let you fully control the link style.
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Capitalize first letter. MySQL
...s not a native function but a user created function which MySQL version 5+ allows.
If you have Super/Admin user status on MySQL or have a local mysql installation on your own computer you can create a FUNCTION (like a stored procedure) which sits in your database and can be used in all future SQL q...
How do I detect if Python is running as a 64-bit application? [duplicate]
... Can somebody give an update for 2017 please. So confusing for noobs all that. Is sys.maxsize the right way to go today or does platform.architecture() works reliably on OS X, Win and Linux now?
– Wlad
Jan 31 '17 at 14:15
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Configure Microsoft.AspNet.Identity to allow email address as username
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The C# version of this (in App_Code\IdentityModels.cs) is
public UserManager()
: base(new UserStore<ApplicationUser>(new ApplicationDbContext()))
{
UserValidator = new UserValidator<ApplicationUser>(this) { AllowOnlyAlphan...
Strings as Primary Keys in SQL Database [closed]
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Technically yes, but if a string makes sense to be the primary key then you should probably use it. This all depends on the size of the table you're making it for and the length of the string that is going to be the primary key (lo...