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JavaScript pattern for multiple constructors
...is._constructInSomeOtherWay(a, b);
}
You can also access arguments as an array-like to get any further arguments passed in.
If you need more complex arguments, it can be a good idea to put some or all of them inside an object lookup:
function bar(argmap) {
if ('optionalparam' in argmap)
...
How to [recursively] Zip a directory in PHP?
.../', $file);
// Ignore "." and ".." folders
if( in_array(substr($file, strrpos($file, '/')+1), array('.', '..')) )
continue;
$file = realpath($file);
if (is_dir($file) === true)
{
$zip->addEmptyDir(str_r...
Go Unpacking Array As Arguments
So in Python and Ruby there is the splat operator (*) for unpacking an array as arguments. In Javascript there is the .apply() function. Is there a way of unpacking an array/slice as function arguments in Go? Any resources for this would be great as well!
...
Why can't I define a default constructor for a struct in .NET?
...rs in structs - but they still won't be called in all situations (e.g. for array creation) (in the end this feature was not added to C# 6).
EDIT: I've edited the answer below due to Grauenwolf's insight into the CLR.
The CLR allows value types to have parameterless constructors, but C# doesn't....
What is the $$hashKey added to my JSON.stringify result
...
Note! I was using an array with a clone method which copied then inserted elements into an array, which was then rendered by an ng-repeat. I was getting angular 'duplicate key' errors when using JSON.parse(JSON.stringify(obj)) to clone my elemen...
How does the Brainfuck Hello World actually work?
...
1. Basics
To understand Brainfuck you must imagine infinite array of cells initialized by 0 each.
...[0][0][0][0][0]...
When brainfuck program starts, it points to any cell.
...[0][0][*0*][0][0]...
If you move pointer right > you are moving pointer from cell X to cell X+1
.....
What are deferred objects?
...This is neccesary to handle
// how done deals with arrays recursively
// only the original .done call handles fired
// any that unwrap arrays and call recursively
// dont handle the fired.
...
How do I apply the for-each loop to every character in a String?
...
The easiest way to for-each every char in a String is to use toCharArray():
for (char ch: "xyz".toCharArray()) {
}
This gives you the conciseness of for-each construct, but unfortunately String (which is immutable) must perform a defensive copy to generate the char[] (which is mutable), s...
Ruby combining an array into one string
In Ruby is there a way to combine all array elements into one string?
3 Answers
3
...
Count the number of occurrences of a character in a string in Javascript
...thus the || []
The original answer I made in 2009 is below. It creates an array unnecessarily, but using a split is faster (as of September 2014). I'm ambivalent, if I really needed the speed there would be no question that I would use a split, but I would prefer to use match.
Old answer (from 200...