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Rails ActionMailer - format sender and recipient name/email address
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If you are taking user input for name and email, then unless you very carefully validate or escape the name and email, you can end up with an invalid From header by simply concatenating strings. Here is a safe way:
require 'mail'
address = Mail::Address.new email # ex: "john@example.com"
addre...
Visual Studio SP1 error: silverlight_sdk.msi is unavailable
...e installed the full SP1 after (this installation took over 12 hours, so I canceled it). The web platform installer told me that SP1 and Silverlight 4 was installed.
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What is the shortest function for reading a cookie by name in JavaScript?
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a parameter is not regex escaped, while it can be useful, it is not safe. Things likegetCookieValue('.*') will return any random cookie
– Vitim.us
Dec 21 '16 at 16:06
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What is std::move(), and when should it be used?
Good links are appreciated.
8 Answers
8
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iTunes Connect: How to choose a good SKU?
...ading the iTunes Connect Developer Guide as I'm trying to add a new application to iTunes Connect.
7 Answers
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Performance surprise with “as” and nullable types
I'm just revising chapter 4 of C# in Depth which deals with nullable types, and I'm adding a section about using the "as" operator, which allows you to write:
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How do you get a Golang program to print the line number of the error it just called?
....Fatal was ran. Is there no way of getting access to the line number that called log.Fatal? i.e. is there a way to get the line number when throwing an error?
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Why does Convert.ToString(null) return a different value if you cast null?
...th the input. A null value is convertible to any reference type. In this case string is more specific than object and hence it will be picked as the winner.
In the null as object you've solidified the type of the expression as object. This means it's no longer compatible with the string overlo...
Swift alert view with OK and Cancel: which button tapped?
... using iOS8, you should be using UIAlertController — UIAlertView is deprecated.
Here is an example of how to use it:
var refreshAlert = UIAlertController(title: "Refresh", message: "All data will be lost.", preferredStyle: UIAlertControllerStyle.Alert)
refreshAlert.addAction(UIAlertAction(title...
List directory tree structure in python?
I know that we can use os.walk() to list all sub-directories or all files in a directory. However, I would like to list the full directory tree content:
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