The :valid CSS pseudo-class
The :valid CSS pseudo-class represents any <input> or other <form> element whose contents validate successfully. This allows to easily make valid fields adopt an appearance that helps the user confirm that their data is formatted properly.
input:valid {
background-color: powderblue;
}This pseudo-class is useful for highlighting correct fields for the user.
Here is browser support for this class:
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Error handling with ExpressJS
Error Handling refers to how Express catches and processes errors...
app.get('/', function (req, res, next) {
fs.readFile('/file-does-not-exist', function (err, data) {
})