README
Checks if map is empty. :package: :smiley_cat: :running: :vhs: :moon: :scroll: :newspaper: :blue_book:
This is part of package extra-map.
map.isEmpty(x);
// x: a map
const map = require("extra-map");
var x = new Map([["a", 1], ["b", 2], ["c", 3]]);
map.isEmpty(x);
// false
var x = new Map();
map.isEmpty(x);
// true