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Basic HTTP authentication with Node and Express 4
...n: 'yourlogin', password: 'yourpassword'} // change this
// parse login and password from headers
const b64auth = (req.headers.authorization || '').split(' ')[1] || ''
const [login, password] = Buffer.from(b64auth, 'base64').toString().split(':')
// Verify login and password are set and co...
What is the appropriate HTTP status code response for a general unsuccessful request (not an error)?
...return a status
code that reflects success (status codes from 200 to 206 and from 300
to 307) but include a message body that describes an error condition.
Doing this prevents HTTP-aware software from detecting errors. For
example, a cache will store it as successful response and serve it to...
How to pass a view's onClick event to its parent on Android?
I have a TextView in a layout whos background is a Selector. And the TextView's text is set to Spanned from HTML.
Then I set the TextView with the LinkMovementMethod.
...
iOS (iPhone, iPad, iPodTouch) view real-time console log terminal
Is there a way to view the real-time console log to view NSLog and other debug messages in a real-time manner, such as adb logcat?
...
Ruby on Rails Callback, what is difference between :before_save and :before_create?
Could you explain in detail what the :before_save and :before_create Ruby on Rails callbacks are, and what they have to do with Rails validations? Does validation occur after :before_save or :before_create ?
...
Why does an image captured using camera intent gets rotated on some devices on Android?
I'm capturing an image and setting it to image view.
24 Answers
24
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What is the fundamental difference between WebSockets and pure TCP?
I've read about WebSockets and I wonder why browser couldn't simply open trivial TCP connection and communicate with server like any other desktop application. And why this communication is possible via websockets?
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Amazon EC2, mysql aborting start because InnoDB: mmap (x bytes) failed; errno 12
.... Since Micro instances have only 613MB of memory, MySQL crashed every now and then. After a long search about MySQL, Micro Instance and Memory Managment I found out there is no default SWAP space for Micro instance. So if you want to avoid the crash you may need to setup a swap space for your micro...
What is an invariant?
... of a program state that is always true..." - @jacob baskin - well written and thanks for this.
– twknab
May 31 '19 at 23:37
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JavaScript: What are .extend and .prototype used for?
I am relatively new to JavaScript and keep seeing .extend and .prototype in third party libraries I am using. I thought it had to do with the Prototype javascript library, but I am beginning to think that is not the case. What are these used for?
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