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Node.js - use of module.exports as a constructor
....width, 2);
}
}
export default Square;
Using it in ES6
import Square from "./square";
// ...
When using a class, you must use the new keyword to instatiate it. Everything else stays the same.
share
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How does the String class override the + operator?
...so optimize away the
creation of a wrapper object by converting directly from a primitive
type to a string.
The optimized version will not actually do a full wrapped String conversion first.
This is a good illustration of an optimized version used by the compiler, albeit without the conversio...
Regex using javascript to return just numbers
...
I guess you want to get number(s) from the string. In which case, you can use the following:
// Returns an array of numbers located in the string
function get_numbers(input) {
return input.match(/[0-9]+/g);
}
var first_test = get_numbers('something102')...
How to do version numbers? [closed]
...e? Less of an R&D decision and more a product decision.
minor: Starts from 0 whenever major is incremented. +1 for every version that goes public.
release: Every time you hit a development milestone and release the product, even internally (e.g. to QA), increment this. This is especially impor...
Combined area of overlapping circles
... You'll need to subtract the center connected polygon for the hole from the total and add the circle slices for that polygon to the total.
– Ants Aasma
Nov 3 '09 at 15:03
3...
Automapper - how to map to constructor parameters instead of property setters
...lly mapped according to the conventions.
Also note that this is different from ConvertUsing in that convert using will not continue to map via the conventions, it will instead give you full control of the mapping.
Mapper.CreateMap<ObjectFrom, ObjectTo>()
.ConstructUsing(x => new Objec...
What is thread safe or non-thread safe in PHP?
...ways choose non-thread safe version because I always use nginx, or run PHP from the command line.
The non-thread safe version should be used if you install PHP as a CGI binary, command line interface or other environment where only a single thread is used.
A thread-safe version should be used if y...
Amazon S3 - HTTPS/SSL - Is it possible? [closed]
...
This is a response I got from their Premium Services
Hello,
This is actually a issue with the way SSL validates names containing a period, '.', > character. We've documented this behavior here:
http://docs.amazonwebservices.com/AmazonS3/latest/d...
Why is $$ returning the same id as the parent process?
...
$$ is defined to return the process ID of the parent in a subshell; from the man page under "Special Parameters":
$ Expands to the process ID of the shell. In a () subshell, it expands to the process ID of the current shell, not the subshell.
In bash 4, you can get the process ID...
Error handling with node.js streams
...l you have to do is :
include the stream module
instantiate ( or inherit from) the Transform class
implement a _transform method which takes a (chunk, encoding, callback).
The chunk is your data. Most of the time you won't need to worry about encoding if you are working in objectMode = true. T...