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How to merge YAML arrays?
... commands, you may be able to achieve this as follows:
# note: no dash before commands
some_stuff: &some_stuff |-
a
b
c
combined_stuff:
- *some_stuff
- d
- e
- f
This is equivalent to:
some_stuff: "a\nb\nc"
combined_stuff:
- "a\nb\nc"
- d
- e
- f
I have been u...
C# - What does the Assert() method do? Is it still useful?
...ing with breakpoints and I realize the assert call? I thought it was only for unit tests. What does it do more than breakpoint? Since I can breakpoint, why should I use Assert?
...
When to use an object instance variable versus passing an argument to the method
...
Since you're referring to instance variables, I'm assuming that you're working in an object-oriented language. To some degree, when to use instance variables, how to define their scope, and when to use local variables is subjective, but there are a couple of rules of thumb you can follow whenever...
Are empty HTML5 data attributes valid?
...y plugin that displays inline modals under specified elements. My idea is for the script to auto-init based on data attributes specified on elements.
...
What's a redirect URI? how does it apply to iOS app for OAuth2.0?
Beginner programmer here, please pardon ignorance & explanations will be really nice :)
4 Answers
...
Difference between Mutable objects and Immutable objects [duplicate]
... created.
A very simple immutable object is a object without any field. (For example a simple Comparator Implementation).
class Mutable{
private int value;
public Mutable(int value) {
this.value = value;
}
//getter and setter for value
}
class Immutable {
private final int value;...
Difference between HashSet and HashMap?
...ver, it implements an entirely different interface.
When you are looking for what will be the best Collection for your purposes, this Tutorial is a good starting place. If you truly want to know what's going on, there's a book for that, too.
...
How to validate an email address in JavaScript
...(email)) {
$result.text(email + " is valid :)");
$result.css("color", "green");
} else {
$result.text(email + " is not valid :(");
$result.css("color", "red");
}
return false;
}
$("#validate").on("click", validate);
<script src="https://ajax.googleapis.com/ajax/l...
Using lambda expressions for event handlers
...
There are no performance implications since the compiler will translate your lambda expression into an equivalent delegate. Lambda expressions are nothing more than a language feature that the compiler translates into the exact same code tha...
Class.forName() vs ClassLoader.loadClass() - which to use for dynamic loading? [duplicate]
...
They are quite different!
As stated in the documentation for Class.forName(String),
Returns the Class object associated with the class or interface with the given string name. Invoking this method is equivalent to: Class.forName(className, true, currentLoader)
(true here refe...