Rest Operator for Objects

object,tipjs,es6

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.

const options = {
  enabled: true,
  text: 'Hello',
  color: 'red'
}
const { enabled, ...others } = options
console.log(enabled) // true
console.log(others)  // { text: 'Hello', color: 'red' }

Đếm có bao nhiêu items giống nhau trong một array

Callback in javascript

Random String

using Typescript callback style error handling

Getting the last element of a split string array