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Setting PayPal return URL and making it auto return?
...n Auto Return:
Log in to your PayPal account at https://www.paypal.com or https://www.sandbox.paypal.com
The My Account Overview page appears.
Click the gear icon top right.
The Profile Summary page appears.
Click the My Selling Preferences link in the left column.
Under the Sell...
How to install latest version of Node using Brew
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What are best practices for validating email addresses on iOS 2.0
...ess explains in great detail that the grammar specified in RFC 5322 is too complicated for primitive regular expressions.
I recommend a real parser approach like MKEmailAddress.
As quick regular expressions solution see this modification of DHValidation:
- (BOOL) validateEmail: (NSString *) can...
Can I record/play macros in Visual Studio 2012/2013/2015/2017/2019?
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How to link to specific line number on github
... like this:
And now your browser's URL looks like this:
https://github.com/git/git/blob/master/README#L18
If you want multiple lines selected, simply hold down the shift key and click a second line number, like line 20. Looks like this:
And now your browser's URL looks like this:
https://g...
How do I auto-submit an upload form when a file is selected?
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Remove/hide a preference from the screen
...ivity.
I'm loading preferences from the xml file.
But in some cases i need completely hide one of the preferences from the screen based on my app state. There is a setEnabled method, but it's not exactly what i want. I want to remove that preference from the screen completely.
Is it possible ?
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How to create SBT project with IntelliJ Idea?
...sbt project. Basic features work out of the box using both solutions, some complex builds can have problems, so try other tools to see if it works there.
IntelliJ
IntelliJ IDEA has become so much better these days. The current version (14.0.2) supports sbt projects out of the box with the Scala pl...
Max parallel http connections in a browser?
I am creating some suspended connections to an HTTP server (comet, reverse ajax, etc). It works ok, but I see the browser only allows two suspended connections to a given domain simultaneously. So if a user is looking at my website in Tab1 of their browser, then also tries loading it in Tab2, they'v...
ab load testing
...xposed to serious stress in production.
Having said that, here's the most common and simplest parameters:
-c: ("Concurrency"). Indicates how many clients (people/users) will be hitting the site at the same time. While ab runs, there will be -c clients hitting the site. This is what actually decide...