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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...
Sql Server 'Saving changes is not permitted' error ► Prevent saving changes that require table re-cr
When I create a table in SQL Server and save it, if I try to edit the table design, like change a column type from int to real, I get this error:
...
How do I generate a random int number?
How do I generate a random integer in C#?
32 Answers
32
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How can I negate the return-value of a process?
...at negates the value a process returns. It should map 0 to some value != 0 and any value != 0 to 0, i.e. the following command should return "yes, nonexistingpath doesn't exist":
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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 ?
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Random “Element is no longer attached to the DOM” StaleElementReferenceException
...ms like a complete nightmare. The Chrome webdriver is currently unusable, and the other drivers are quite unreliable, or so it seems. I am battling many problems, but here is one.
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How to order citations by appearance using BibTeX?
...erwise
Use the makebst (link) tool to design your own bibliography style
And my personal recommendation:
Use the biblatex package (link). It's the most complete and flexible bibliography tool in the LaTeX world.
Using biblatex, you'd write something like
\documentclass[12pt]{article}
\usepack...
Compare two MySQL databases [closed]
...es I've found running mysqldump on both databases with the --skip-comments and --skip-extended-insert options to generate SQL scripts, then running diff on the SQL scripts works pretty well.
By skipping comments you avoid meaningless differences such as the time you ran the mysqldump command. By us...
Failed to load resource: net::ERR_INSECURE_RESPONSE
...uming your frame's URL is https://www.domain.com, open a new tab in chrome and go to https://www.domain.com.
Chrome will ask you to accept the SSL certificate. Accept it.
Then, if you reload your page with your frame, you could see that now it works
The problem as you can guess, is that each visit...
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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