Hàm lày ngày trong tuần javascript

const getWhatDay = () => {
  return new Date().getDay() ? new Date().getDay() : 7
}
console.log(getWhatDay());//3

Rest Operator for Objects

Now we can use rest on the properties of an Object. It allows us to explicitly extract certain named variables, and assign any uncalled variables into a catchall Object.

Getting the last element of a split string array

Hàm lày ngày trong tuần javascript

promise in javascript

flatMap()

Use flatMap() creates a new array with sub-array elements flattened by specified depth.