Format size, permissions, etc.
Format could be used in browser or node.
const format = require('format-io');
const size = 1024 * 1024 * 5; format.size(size); // returns '5.00mb';
const perm = '00777'; format.permissions.symbolic(perm); // returns 'rwx rwx rwx';
const perm = 'rwx rwx rwx'; format.permissions.numeric(perm); // returns '00777';
MIT