Edit fiddle - JSFiddle - React, Tailwind, and code Playground

JSFiddle - React, Tailwind, and code Playground

JavaScript

var myFriends = ["arun", "dheeraj", "babu", "joel"]

function areFriends(oneFriend, secondFriend ) {

if(myFriends.indexOf(oneFriend) > -1 && myFriends.indexOf(secondFriend) > -1) {

alert(oneFriend + "and" + secondFriend + "are friends" ) 

} 

} 

areFriends("arun", "dheeraj")

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JSFiddle - React, Tailwind, and code Playground

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