Chained Arrow function syntax

Question

const fetch = url => dispatch => {
  // ...
}

export const fetchQuestions = tag => (dispatch) => {
  return dispatch(fetch(tag));
};

What

Answer 1

fetch is a named function expression that takes a url parameter and returns a new function that takes a dispatch parameter.

You could rewrite using traditional function syntax:

const fetch = function (url) {
  return function(dispatch) {
    // ...
  }
}