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.

try/catch es10

An update for developer convience allows the use of try/catch without an explicit e Error reference in the catch call.

Làm phẳng mảng dùng phương pháp đệ quy

Ajax, call jQuery POST to node.js expressjs

Promise + gì

promise + gì