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One-liner to take some properties from object in ES 6
...; there is no slimmer general solution (torazaburo's solution removes from extra verbage, but the essential problem -- that all property names have to be written twice -- means it doesn't scale any better than your solution). My solution at least scales well...right the pick function once, and you ...
Best way to test if a row exists in a MySQL table
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Suggest you not to use Count because count always makes extra loads for db use SELECT 1 and it returns 1 if your record right there otherwise it returns null and you can handle it.
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Named capturing groups in JavaScript regex?
...y valuable. For example, if you want to use a regex to parse a date from a string, you could write a flexible function that takes the value and the regex. As long as the regex has named captures for the year, month and date you could run through an array of regular expressions with minimal code.
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Does reading an entire file leave the file handle open?
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Instead of retrieving the file content as a single string,
it can be handy to store the content as a list of all lines the file comprises:
with open('Path/to/file', 'r') as content_file:
content_list = content_file.read().strip().split("\n")
As can be seen, one needs t...
Is there any difference between a GUID and a UUID?
... way as a UUID. For example, the RSS specification defines GUIDs to be any string of your choosing, as long as it's unique, with an "isPermalink" attribute to specify that the value you're using is just a permalink back to the item being syndicated.
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Command to change the default home directory of a user
...ou can also use bind-mount:
mkdir /home/username
mount --bind --verbose /extra-home/username /home/username
This is useful for allowing access "through" the /home directory to subdirs via daemons that are otherwise configured to avoid pathing through symlinks (apache, ftpd, etc.).
You have to r...
Specifying column name in a “references” migration
...eferences :col_name, references: other_table_name works without installing extra gems.
– Qqwy
Sep 9 '19 at 14:26
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Handle file download from ajax post
...p that sends ajax POST requests to a certain URL. Response might be a JSON string or it might be a file (as an attachment). I can easily detect Content-Type and Content-Disposition in my ajax call, but once I detect that the response contains a file, how do I offer the client to download it? I've re...
Why is HttpClient BaseAddress not working?
...URI has a defined authority component and an empty
path, then return a string consisting of "/" concatenated with the
reference's path; otherwise
return a string consisting of the reference's path component
appended to all but the last segment of the base URI's path (i.e.,
excludin...
Load view from an external xib file in storyboard
...want to reference:
public protocol NibLoadable {
static var nibName: String { get }
}
public extension NibLoadable where Self: UIView {
public static var nibName: String {
return String(describing: Self.self) // defaults to the name of the class implementing this protocol.
}
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