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How to declare a type as nullable in TypeScript?
...
To be more C# like, define the Nullable type like this:
type Nullable<T> = T | null;
interface Employee{
id: number;
name: string;
salary: Nullable<number>;
}
Bonus:
To make Nullable behave like a built in Typescript type, define it in a global.d.ts definition file in t...
rails i18n - translating text with links inside
... is a text, with a %{href} inside."
log_in_href: "link"
login.html.erb
<p> <%= t("log_in_message_html", href: link_to(t("log_in_href"), login_path)) %> </p>
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Thread-safe List property
I want an implementation of List<T> as a property which can be used thread-safely without any doubt.
16 Answers
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How to insert spaces/tabs in text using HTML/CSS
...of the space is beyond &nbsp; I usually use:
For horizontal spacer:
<span style="display:inline-block; width: YOURWIDTH;"></span>
For vertical spacer:
<span style="display:block; height: YOURHEIGHT;"></span>
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Maven2: Missing artifact but jars are in place
...er settings.
Check you're using the Maven installation you expect. By default m2eclipse uses the embedder, if you have a separate installation you may want to configure m2eclipse to use the external installation so that CLI and Eclipse builds are consistent. This also ensures you're configured to co...
Automatically update version number
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With the "Built in" stuff, you can't, as using 1.0.* or 1.0.0.* will replace the revision and build numbers with a coded date/timestamp, which is usually also a good way.
For more info, see the Assembly Linker Documentation in the /v ta...
Should one call .close() on HttpServletResponse.getOutputStream()/.getWriter()?
... if you closed the stream it would not be available if you implemented a Filter.
Having said all that, if you do close it nothing bad will happen as long as you don't try to use it again.
EDIT: another filter link
EDIT2: adrian.tarau is correct in that if you want to alter the response after the ...
Simple and fast method to compare images for similarity
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Codes example
origin lena
blur lena
resize lena
shift lena
#include <opencv2/core.hpp>
#include <opencv2/core/ocl.hpp>
#include <opencv2/highgui.hpp>
#include <opencv2/img_hash.hpp>
#include <opencv2/imgproc.hpp>
#include <iostream>
void compute(cv::Ptr<...
How to remove all the occurrences of a char in c++ string
...See this question which answers the same problem. In your case:
#include <algorithm>
str.erase(std::remove(str.begin(), str.end(), 'a'), str.end());
Or use boost if that's an option for you, like:
#include <boost/algorithm/string.hpp>
boost::erase_all(str, "a");
All of this is well...
Compare two List objects for equality, ignoring order [duplicate]
... requires IEquatable, not IComparable:
public static bool ScrambledEquals<T>(IEnumerable<T> list1, IEnumerable<T> list2) {
var cnt = new Dictionary<T, int>();
foreach (T s in list1) {
if (cnt.ContainsKey(s)) {
cnt[s]++;
} else {
cnt.Add(s, 1);
}
...