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How do function pointers in C work?
...eir respective functions:
String newString()
{
String self = (String)malloc(sizeof(struct String_Struct));
self->get = &getString;
self->set = &setString;
self->length = &lengthString;
self->set(self, "");
return self;
}
For example, the getStrin...
Docker and securing passwords
...eople. An alternative is to provide any credentials (usernames, passwords, tokens, anything sensitive) as environment variables at runtime. This is possible via the -e argument (for individual vars on the CLI) or --env-file argument (for multiple variables in a file) to docker run. Read this for usi...
Regular Expression for alphanumeric and underscores
...A-Z, a-z, or underscore (_).
Here is how you would do that:
Tested under php:
$regex = '/^[A-Za-z_][A-Za-z\d_]*$/'
or take this
^[A-Za-z_][A-Za-z\d_]*$
and place it in your development language.
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How to download .zip from GitHub for a particular commit sha?
...if this is a private repo then wget will not work unless you pass an OAuth token as well.
Here's more info on that:
Having trouble downloading Git archive tarballs from Private Repo
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Summarizing multiple columns with dplyr? [duplicate]
...#> # A tibble: 3 x 6
#> expression min median `itr/sec` mem_alloc `gc/sec`
#> <bch:expr> <bch:tm> <bch:tm> <dbl> <bch:byt> <dbl>
#> 1 dplyr 2.81ms 2.85ms 328. NA 17.3
#> 2 purrrlyr 7.96ms 8.04ms ...
Is there a naming convention for git repositories?
...
If you plan to create a PHP package you most likely want to put in on Packagist to make it available for other with composer.
Composer has the as naming-convention to use vendorname/package-name-is-lowercase-with-hyphens.
If you plan to create a J...
Why does integer division in C# return an integer and not a float?
...perator, depending upon which behavior was desired]. Were some other good token sequence available for integer division, it might be possible to deprecate the use of / for that purpose, but I don't know what would be practical.
– supercat
Dec 20 '13 at 21:41
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How to send a PUT/DELETE request in jQuery?
...
$.ajax will work.
$.ajax({
url: 'script.php',
type: 'PUT',
success: function(response) {
//...
}
});
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Difference between $.ajax() and $.get() and $.load()
...s arrays of data to the server (POST request)
$( "#objectID" ).load( "test.php", { "choices[]": [ "Jon", "Susan" ] } );
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Vim Configure Line Number Coloring
...most platforms seems to be yellow (which is also used for some highlighted tokens). I would like to color the line numbers a dim gray; somewhere in the vicinity of #555 . I'm not picky though, any subdued color would be acceptable.
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