const result = _.map({a: 1, b: 2}, function(value, key) {
    return value + key;
});

Aggregation is a very small JavaScript library for Node.js environments, providing just a single function, for use in ECMAScript 5/6 class inheritance based on mixins. It aggregates a base class and one or more mixin classes into an aggregate class, which then is usually subsequently used as the base class for another class.

mics (pronounce: mix) is a library that makes multiple inheritance in Javascript a breeze. Inspired by the excellent blog post “Real” Mixins with Javascript Classes by Justin Fagnani, mics tries to build a minimal library around the concept of using class expressions (factories) as mixins. mics extends the concepts presented in the blog post by making the mixins first-class citizens that can be directly used to instantiate objects and can be mixed in with other mixins instead of just with classes.

Want to see what's inside a variable in a complete, colored and human-friendly way?

use Data::Printer; # or just "use DDP" for short

p @array; # no need to pass references

Code above might output something like this (with colors!):

[
[0] "a",
[1] "b",
[2] undef,
[3] "c",
]

You can also inspect objects:

my $obj = SomeClass->new;

p($obj);

Which might give you something like:

\ SomeClass {
Parents Moose::Object
Linear @ISA SomeClass, Moose::Object
public methods (3) : bar, foo, meta
private methods (0)
internals: {
_something => 42,
}
}