maxfarseer

// connect() is a function that injects Redux-related props into your component.
// You can inject data and callbacks that change that data by dispatching actions.
function connect(mapStateToProps, mapDispatchToProps) {
  // It lets us inject component as the last step so people can use it as a decorator.
  // Generally you don't need to worry about it.
  return function (WrappedComponent) {
    // It returns a component
    return class extends React.Component {
      render() {
        return (

maxfarseer

Array<T>

<T> = iterable (то есть, что-то перечисляемое, доступное для перебора)

Легенда:

• ✏️ метод изменяет this.
• 🔒 метод не изменяет this.

Array.prototype.*:

maxfarseer

Create postgresql user Mac OS X

After installing the postgres app: http://postgresapp.com/

It will create a database user with the current username, to create another user for example 'postgres':

$ createuser postgres -s

Open psql with the created user using -U

$ psql postgres -U postgres