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Is there a “null coalescing” operator in JavaScript?
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Update
JavaScript now supports the nullish coalescing operator (??). It returns its right-hand-side operand when its left-hand-side operand is null or undefined, and otherwise returns its left-hand-side operand.
Please check compatibility before using it.
The JavaScript equivalent of the ...
How to do the equivalent of pass by reference for primitives in Java
... return toyNumber
}
This choice would require a small change to the callsite in main so that it reads, toyNumber = temp.play(toyNumber);.
Choice 3: make it a class or static variable
If the two functions are methods on the same class or class instance, you could convert toyNumber into a class me...
Parsing huge logfiles in Node.js - read in line-by-line
... line using a stream. All the third-party libraries and examples did not suit my needs since they processed the files not line by line (like 1 , 2 , 3 , 4 ..) or read the entire file to memory
The following solution can parse very large files, line by line using stream & pipe. For testing I use...
Ways to circumvent the same-origin policy
I wanted to make a community wiki regarding HTML/JS same-origin policies to hopefully help anyone searching for this topic. This is one of the most searched-for topics on SO and there is no consolidated wiki for it so here I go :)
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What is the difference between task and thread?
...id some sample program(help taken from MSDN) for my own sake of learning with
8 Answers
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What is the purpose of the single underscore “_” variable in Python?
...y the standard CPython
interpreter, and other interpreters have followed suit
As a general purpose "throwaway" variable name to indicate that part
of a function result is being deliberately ignored (Conceptually, it is being discarded.), as in code like:
label, has_label, _ = text.partition(':').
As...
How do I copy an object in Java?
...as also a clone method which can be used to copy the object, but don't use it. It's way too easy to create a class and do improper clone method. If you are going to do that, read at least what Joshua Bloch has to say about it in Effective Java.
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Cannot push to Git repository on Bitbucket
I created a new repository and I'm running into a strange error. I've used Git before on Bitbucket but I just reformatted and now I can't seem to get Git to work. After doing a commit, I had to add my email and name to the globals, but then it committed just fine.
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Why use the params keyword?
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With params you can call your method like this:
addTwoEach(1, 2, 3, 4, 5);
Without params, you can’t.
Additionally, you can call the method with an array as a parameter in both cases:
addTwoEach(new int[] { 1, 2, 3, 4, ...
Maven artifact and groupId naming
...in com.mycompany.awesomeinhouseframework group directory. And I would find it there according to your convention.
Two simple rules work for me:
reverse-domain-packages for groupId (since such are quite unique) with all the constrains regarding Java packages names
project name as artifactId (keepi...