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Why does PostgreSQL perform sequential scan on indexed column?
...Also, a sequential scan can request several pages from the heap at a time, and ask the kernel to be fetching the next chunk while it works on the current one- an index scan fetches one page at once. (A bitmap scan does a compromise between the two, you usually see that appearing in a plan for querie...
JavaScript ternary operator example with functions
...else syntax because I don't like to sacrifice readability - I'm old-school and I prefer my braces.
The full if/then/else format is used for pretty much everything. It's especially popular if you get into larger blocks of code in each branch, you have a muti-branched if/else tree, or multiple else/...
Equivalent of “continue” in Ruby
In C and many other languages, there is a continue keyword that, when used inside of a loop, jumps to the next iteration of the loop. Is there any equivalent of this continue keyword in Ruby?
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Is there a builtin confirmation dialog in Windows Forms?
...ike to create a simple confirm dialog saying "Please check the information and if you're sure it's correct, click OK."
3 An...
What is the MIME type for Markdown?
...n, but the topic was discussed quite heavily on the official mailing-list, and reached the choice of text/x-markdown.
This conclusion was challenged later, has been confirmed and can be, IMO, considered consensus.
This is the only logical conclusion in the lack of an official mime type: text/ will...
How can I see the request headers made by curl when sending a request to the server?
...very helpful feature of the "verbose" flag: first, it also prints the TLS handshake process when accessing website through HTTPS, such as curl -v https://www.example.com; second, it also prints the CONNECT request if you are visiting the site through HTTP proxy, such as curl --proxy my-proxy:8080 ht...
Access Asset Catalog programmatically
I know it's a new feature and this may not be possible, but I would love to be able to use an Asset Catalog to organize my assets, but I access all of my images programmatically. How would I access my images, now? Do I still access them by their file names like so:
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How to implement a property in an interface
... there is no code. You just specify that there is a property with a getter and a setter, whatever they will do.
In the class, you actually implement them. The shortest way to do this is using this { get; set; } syntax. The compiler will create a field and generate the getter and setter implementati...
How do I create a pylintrc file
...g linux. Can I do something like pylint --generate-rcfile > .pylintrc and then make changes to the resulting .pylintrc file to override the default settings? And if so should it be in my ~/ directory or should I put it in .pylint.d?
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Check for current Node Version
... answered Jun 21 '16 at 9:15
Andrea BaccegaAndrea Baccega
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