const numbers = [1,1,3,2,5,3,4,7,7,7,8];
//Ex1
const unieqNumbers = numbers.filter((v,i,a) => a.indexOf(v )=== i )
console.log(unieqNumbers) //[1,3,2,5,4,7,8]
//Ex2
const unieqNumbers2 = Array.from(new Set(numbers))
console.log(unieqNumbers2) //[1,3,2,5,4,7,8]
//Ex3
const unieqNumbers3 = [...new Set(numbers)]
console.log(unieqNumbers3) //[1,3,2,5,4,7,8]
//EX4 lodash
const unieqNumbers4 = _.uniq(numbers)
console.log(unieqNumbers4) //[1,3,2,5,4,7,8]