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Is it possible to reference one CSS rule within another?
...ariable") instead of any part of a value of another property.
Example:
:root {
--main-bg-color: yellow;
}
@media (prefers-color-scheme: dark) {
:root {
--main-bg-color: black;
}
}
body {
background-color: var(--main-bg-color);
}
...
Why does typeof NaN return 'number'?
...ctions.
Real operations with complex results:
The square root of a negative number
The logarithm of a negative number
The tangent of an odd multiple of 90 degrees (or π/2 radians)
The inverse sine or cosine of a number which is less than −1 or
greater than +1.
Al...
What is the Oracle equivalent of SQL Server's IsNull() function?
...
+1: COALESCE is ANSI, supported by Postgres, MySQL... The only caveat is that it doesn't necessarily perform as fast as native syntax.
– OMG Ponies
Aug 19 '10 at 17:33
...
getting date format m-d-Y H:i:s.u from milliseconds
....433818
10-29-2015 11:40:09.433818
Note that if you want to input into mysql, the time format needs to be:
format("Y-m-d H:i:s.u")
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mysqli or PDO - what are the pros and cons? [closed]
In our place we're split between using mysqli and PDO for stuff like prepared statements and transaction support. Some projects use one, some the other. There is little realistic likelihood of us ever moving to another RDBMS.
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Set a DateTime database field to “Now”
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Oops yes NOW() is Mysql, sorry. But the questions remains.
– Thibault Witzig
Dec 20 '10 at 9:38
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Using Emacs to recursively find and replace in text files not already open
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M-x find-name-dired: you will be prompted for a root directory and a filename pattern.
Press t to "toggle mark" for all files found.
Press Q for "Query-Replace in Files...": you will be prompted for query/substitution regexps.
Proceed as with query-replace-regexp: SPACE to...
How to give ASP.NET access to a private key in a certificate in the certificate store?
...cation.LocalMachine);
serverCert = GetCertificateIfExist("CN=MyROOTCA", StoreName.Root, StoreLocation.LocalMachine);
if (clientCert == null || serverCert == null)
{
var caCert = GenerateCACertificate("CN=MyROOTCA", ref caPrivateKey);
...
Java client certificates over HTTPS/SSL
...te server, using a client certificate.
The server is using an selfsigned root certificate, and requires that a password-protected client certificate is presented. I've added the server root certificate and the client certificate to a default java keystore which I found in /System/Library/Framewor...
What is the aspnet_client folder for under the IIS structure?
...ms that the 'prototype' for the contents of the folder is in C:\inetpub\wwwroot\, and it seems reasonable to suppose that if any given IIS website lacks a /aspnet_client resource, then IIS will try to do the right thing and ... as a last resort ... make a physical folder in the web site root folder,...