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How to create a library project in Android Studio and an application project that uses the library p
... modules. Modules can be runnable applications or library modules.
So, in order to add a new android library project to you need to create a module of type "Android library". Then add this library module to the dependency list of your main module (Application module).
...
How to access the correct `this` inside a callback?
...ontrived example:
var arr = [1, 2, 3];
var obj = {multiplier: 42};
var new_arr = arr.map(function(v) {
return v * this.multiplier;
}, obj); // <- here we are passing `obj` as second argument
Note: Whether or not you can pass a value for this is usually mentioned in the documentation of that...
How to set enum to null
...l value 0 to any other constant would change that behaviour, also changing order of occurrence would change output of default(Color) (https://stackoverflow.com/a/4967673/8611327)
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How to reuse existing C# class definitions in TypeScript projects
...For every C# class add a line
<#= Interface<Acme.Duck>() #>
Order matters, any known type will be used in follwing interfaces. If you use only interfaces, the file extension can be .d.ts, for enums you need a .ts file, since a variable is instantiated.
Customisation
Hack the script.
...
How to wait for all goroutines to finish without using time.Sleep?
...",
"http://www.somestupidname.com/",
}
for _, url := range urls {
// Increment the WaitGroup counter.
wg.Add(1)
// Launch a goroutine to fetch the URL.
go func(url string) {
// Dec...
How do I convert a byte array to Base64 in Java?
... to Base64
You would need to reference commons codec from your project in order for that code to work.
For java8:
import java.util.Base64
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How to jQuery clone() and change id?
...ID
Say you have many elements with IDs like klon--5 but scrambled (not in order). Here we cannot go for :last or :first, therefore we need a mechanism to retrieve the highest ID:
const $all = $('[id^="klon--"]');
const maxID = Math.max.apply(Math, $all.map((i, el) => +el.id.match(/\d+$/g)[...
Comparator.reversed() does not compile using lambda
...
This is a weakness in the compiler's type inferencing mechanism. In order to infer the type of u in the lambda, the target type for the lambda needs to be established. This is accomplished as follows. userList.sort() is expecting an argument of type Comparator<User>. In the first line, ...
How to read the value of a private field from a different class in Java?
...
In order to access private fields, you need to get them from the class's declared fields and then make them accessible:
Field f = obj.getClass().getDeclaredField("stuffIWant"); //NoSuchFieldException
f.setAccessible(true);
Hash...
Calculate the number of business days between two dates?
...wo dates and he wants to find the number of business days between them. In order to use this solution you'd have to provide another function that produced a list of every date between the twyp.
– Adam Robinson
Oct 24 '09 at 18:18
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