arr.include ex

by amrendra kumar

JavaScript

var arr = [1,2,3];

var arr2 = [3,5,6];

var x = arr.filter(item => !arr2.includes(item) )
 

console.log(x);

const data ={
	name: 'amr',
  class: 6,
  city: 'nl',
  cool: 'yes'
}

const keys = ['name','class','city']

const res = Object.keys(data).map(item => keys.includes(item));

console.log(res)

console.log(res.includes(false))