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