Make Javascript do List Comprehension

Question

What is the cleanest way to make Javascript do something like Python\'s list comprehension?

In Python if I have a list of objects whose name\'s I want to \'

Answer 1

Do this in 2020

const names = collection.map(x => x.name);

MDN | Array.prototype.map()

Old Answer from 2012

Yeah—I miss list comprehensions too.

Here's an answer that's slightly less verbose than @gonchuki's answer and converts it into an actual array, instead of an object type.

var list_of_names = $('input').map(function() {
    return $(this).attr('name');
}).toArray();

A use case of this is taking all checked checkboxes and joining them into the hash of the URL, like so:

window.location.hash = $('input:checked').map(function() {
    return $(this).attr('id');
}).toArray().join(',');