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How do you import classes in JSP?
...te Allows you to Mention more than one package at the same place separated by Commas(,). Alternatively you can have multiple instances of page element each one with Different package .
For Example:
<%@ page import = "java.io.*" %>
<%@ page import = "java.io.*", "java.util.*"%>
Note...
“continue” in cursor.forEach()
...
In my opinion the best approach to achieve this by using the filter method as it's meaningless to return in a forEach block; for an example on your snippet:
// Fetch all objects in SomeElements collection
var elementsCollection = SomeElements.find();
elementsCollection
.f...
Can't compare naive and aware datetime.now()
...
By default, the datetime object is naive in Python, so you need to make both of them either naive or aware datetime objects. This can be done using:
import datetime
import pytz
utc=pytz.UTC
challenge.datetime_start = utc.l...
What does iota of std::iota stand for?
...(inventor of APL) said this:
For example, the integer function denoted by ι produces a vector of the first n integers when applied to the argument n, …
That ι is the lower-case Greek letter iota.
In the quote above, I typed ι, U+03B9, “GREEK SMALL LETTER IOTA”, but Unicode actually h...
How to specify a multi-line shell variable?
... exits the shell if a command has an "unanticipated" non-zero exit status. By "unanticipated", I mean it runs in a context where you aren't specifically looking at its exit status. false by itself, for instance, would exit the shell. false || true would not, since you are anticipating the non-zero e...
How to jump directly to a column number in Vim
... 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 process.env.PORT in Node.js?
...
In some scenarios, port can only be designated by the environment and is saved in a user environment variable. Below is how node.js apps work with it.
The process object is a global that provides information about, and control over, the current Node.js process. As a glob...
Default value in Go's method
...ng {
typ := reflect.TypeOf(prm)
if prm.A == "" {
f, _ := typ.FieldByName("A")
prm.A = f.Tag.Get("default")
}
if prm.B == 0 {
prm.B = 5
}
return fmt.Sprintf("%s%d", prm.A, prm.B)
}
**Option 4:** Full variadic argument parsing (javascript style)
func Concat4(args ...interf...
dplyr summarise: Equivalent of “.drop=FALSE” to keep groups with zero length in output
...g summarise with plyr 's ddply function, empty categories are dropped by default. You can change this behavior by adding .drop = FALSE . However, this doesn't work when using summarise with dplyr . Is there another way to keep empty categories in the result?
...
What is q=0.5 in Accept* HTTP headers?
...epresents an estimate of the user's preference for the languages specified by that range. The quality value defaults to "q=1". For example,
Accept-Language: da, en-gb;q=0.8, en;q=0.7
would mean: "I prefer Danish, but will accept British English and other types of English."
...