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How do I find a list of Homebrew's installable packages?
... formulae, for example brew list postgres will tell you of files installed by postgres (providing it is indeed installed).
brew search <search term> will list the possible packages that you can install. brew search post will return multiple packages that are available to install that have pos...
Why use Dijkstra's Algorithm if Breadth First Search (BFS) can do the same thing faster?
...step. For example, in routing the distances (or weights) could be assigned by speed, cost, preference, etc. The algorithm then gives you the shortest path from your source to every node in the traversed graph.
Meanwhile BFS basically just expands the search by one “step” (link, edge, whatever y...
Why is this F# code so slow?
...unction is not generic (it just takes int). You can improve the F# version by adding type annotations (to get the same thing as in C#):
let min3(a:int, b, c) = min a (min b c)
...or by making min3 as inline (in which case, it will be specialized to int when used):
let inline min3(a, b, c) = min ...
Find substring in the string in TWIG
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
if checkbox is checked, do this
...roperties of an element. The article specifically treats the use of .attr("id") but in the case that #checkbox is an <input type="checkbox" /> element the issue is the same for $(...).attr('checked') (or even $(...).is(':checked')) vs. this.checked.
...
Difference between this and self in self-type annotations?
...ed( e: ActionEvent ) {
// this.setVisible( false ) --> shadowed by JButton!
frame.setVisible( false )
}
})
})
}
The third variant,
trait A { this: B => ... }
does not introduce an alias for this; it just sets the self type.
...
How to index characters in a Golang string?
...are character sequences between double quotes "" using the (possibly multi-byte) UTF-8 encoding of individual characters. In UTF-8, ASCII characters are single-byte corresponding to the first 128 Unicode characters. Strings behave like slices of bytes. A rune is an integer value identifying a Unicod...
Java regular expression OR operator
... imageUploader: {
brandingHtml: "Powered by \u003ca href=\"https://imgur.com/\"\u003e\u003csvg class=\"svg-icon\" width=\"50\" height=\"18\" viewBox=\"0 0 50 18\" fill=\"none\" xmlns=\"http://www.w3.org/2000/svg\"\u003e\u003cpath d=\"M46.1709 9.17788C46.1709 8.26454...
What is the maximum length of data I can put in a BLOB column in MySQL?
...
A BLOB can be 65535 bytes (64 KB) maximum.
If you need more consider using:
a MEDIUMBLOB for 16777215 bytes (16 MB)
a LONGBLOB for 4294967295 bytes (4 GB).
See Storage Requirements for String Types for more info.
...
PDO closing connection
...that PDO object. To
close the connection, you need to destroy the object by ensuring that
all remaining references to it are deleted--you do this by assigning
NULL to the variable that holds the object. If you don't do this
explicitly, PHP will automatically close the connection when your
...