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How can I initialise a static Map?
...er a plain old init method. The hack with two-dimensional array and Stream API is pretty ugly if you ask me, and gets uglier if you need to create a Map whose keys and values are not the same type (like Map<Integer, String> in the question).
As for future of Guava in general, with regards to ...
How does interfaces with construct signatures work?
...es are not implementable in classes; they're only for defining existing JS APIs that define a 'new'-able function. Here's an example involving interfaces new signatures that does work:
interface ComesFromString {
name: string;
}
interface StringConstructable {
new(n: string): ComesFromStri...
What does SynchronizationContext do?
...e new async / await keywords and the Task Parallel Library (TPL), i.e. the API surrounding the Task and Task<TResult> classes. These will, to a very high degree, take care of capturing the UI thread's synchronization context, starting an asynchronous operation, then getting back onto the UI th...
How to return a result (startActivityForResult) from a TabHost Activity?
... Why is returning a result in an Activity not documented anywhere in the API guides, struck me as odd.
– alex.p
Mar 28 '14 at 17:11
...
How to make a new List in Java
...list of all the classes that implement List: docs.oracle.com/javase/7/docs/api/java/util/List.html
– David Mason
Jun 10 '14 at 14:10
5
...
What is ECMAScript?
...n also be used for server side scripting. Then all the geolcation or media apis make no sense. So JavaScript for server side scripting is much closer to ECMAScript again, which doesn't have this typical browser features.
I couldn't really find out, whether the Math object (e.g. Math.sqrt(9)) is par...
How can I iterate through the unicode codepoints of a Java String?
...s a codePoints() method built in to String: docs.oracle.com/javase/8/docs/api/java/lang/…
– Dov Wasserman
Apr 18 '14 at 17:13
...
What is the best way to filter a Java Collection?
...vice.isAuthorized(u);
return isAuthorized;
}).findFirst();
The JDK 8 API for optionals has the ability to get(), isPresent(), orElse(defaultUser), orElseGet(userSupplier) and orElseThrow(exceptionSupplier), as well as other 'monadic' functions such as map, flatMap and filter.
If you want to s...
How to check file MIME type with javascript before upload?
...ould.
if (window.FileReader && window.Blob) {
// All the File APIs are supported.
} else {
// File and Blob are not supported
}
Step 1:
You can retrieve the File information from an <input> element like this (ref):
<input type="file" id="your-files" multiple>
<scr...
Converting numpy dtypes to native python types
...discernibly good reason. Despite a decade of relative stability, the NumPy API is now an unstable moving target mandating constant maintenance from downstream applications. At least they left us the item() method... for now.
– Cecil Curry
Feb 27 '19 at 9:21
...