isEmpty

Check if lists is empty.

Similar: size, isEmpty.

function isEmpty(x)
// x: lists

const xlists = require('extra-lists');

var x = [['a', 'b', 'c'], [1, 2, 3]];
xlists.isEmpty(x);
// → false

var x = [[], []];
xlists.isEmpty(x);
// → true

References

• Data.List.null: Haskell
• List.isEmpty: elm
• Array.length: MDN web docs
• Array.isEmpty: sugarjs