javascript get intersection of two arrays
function getArraysIntersection(a1,a2){
return a1.filter(function(n) { return a2.indexOf(n) !== -1;});
}
var colors1 = ["red","blue","green"];
var colors2 = ["red","yellow","blue"];
var intersectingColors=getArraysIntersection(colors1, colors2); //["red", "blue"]js set operations union intersection
// Union (a ∪ b)
let a = new Set([1,2,3]);
let b = new Set([4,3,2]);
let union = new Set([...a, ...b]);
// {1,2,3,4}
// Intersection (a ∩ b)
let a = new Set([1,2,3]);
let b = new Set([4,3,2]);
let intersection = new Set(
[...a].filter(x => b.has(x)));
// {2,3}
// Difference (a \ b)
let a = new Set([1,2,3]);
let b = new Set([4,3,2]);
let difference = new Set(
[...a].filter(x => !b.has(x)));
// {1}Copyright © 2021 Codeinu
Forgot your account's password or having trouble logging into your Account? Don't worry, we'll help you to get back your account. Enter your email address and we'll send you a recovery link to reset your password. If you are experiencing problems resetting your password contact us
