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Using node.js as a simple web server
I want to run a very simple HTTP server. Every GET request to example.com should get index.html served to it but as a regular HTML page (i.e., same experience as when you read normal web pages).
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How to get the original value of an attribute in Rails
...previous value.
For rails 5.1+
Copied from Lucas Andrade's answer below: https://stackoverflow.com/a/50973808/9359123
Appending _was is deprecated in rails 5.1, now you should append _before_last_save
Something like:
before_save object
do_something_with object.name_before_last_save
end
W...
Check that an email address is valid on iOS [duplicate]
...Email:(NSString *)checkString
{
BOOL stricterFilter = NO; // Discussion http://blog.logichigh.com/2010/09/02/validating-an-e-mail-address/
NSString *stricterFilterString = @"^[A-Z0-9a-z\\._%+-]+@([A-Za-z0-9-]+\\.)+[A-Za-z]{2,4}$";
NSString *laxString = @"^.+@([A-Za-z0-9-]+\\.)+[A-Za-z]{2}[A...
What is the “__v” field in Mongoose
... accesses the right collection version.
More information can be found at: http://aaronheckmann.blogspot.com/2012/06/mongoose-v3-part-1-versioning.html
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Ways to implement data versioning in MongoDB
...ight cause too much overhead, but I think it also simplifies many things.
https://github.com/thiloplanz/v7files/wiki/Vermongo
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How can I expand the full path of the current file to pass to a command in Vim?
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Get the name of the current file
http://vim.wikia.com/wiki/Get_the_name_of_the_current_file
Set_working_directory_to_the_current_file
http://vim.wikia.com/wiki/Set_working_directory_to_the_current_file
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How do I initialize the base (super) class?
...I prefer the 2nd one, as it adheres more to the DRY principle).
See here: http://docs.python.org/reference/datamodel.html#basic-customization
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Using AES encryption in C#
...eck out the following help article (it also has a simple code sample):
http://msdn.microsoft.com/en-us/library/system.security.cryptography.rijndaelmanaged.aspx
And just in case you need the sample in a hurry, here it is in all its plagiarized glory:
using System;
using System.IO;
using Syste...
Does IMDB provide an API? [closed]
...ble (used on the official website through AJAX).
Search Suggestions API
https://sg.media-imdb.com/suggests/a/aa.json
https://v2.sg.media-imdb.com/suggests/h/hello.json (alternate)
Format: JSON-P
Caveat: It's in JSON-P format, and the callback parameter can not customised. To use it cross-domain y...
How to find memory leak in a C++ code/project?
...he leak yet allowed - I'm usually seeking it with deleaker (check it here: http://deleaker.com).
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