some js es6

const fruits = ['apple', 'banana', 'mango', 'guava'];

function checkAvailability(arr, val) {
  return arr.some(function(arrVal) {
    return val === arrVal;
  });
}

checkAvailability(fruits, 'kela');   // false
checkAvailability(fruits, 'banana'); // true

const array = [1, 2, 3, 4, 5];

// checks whether an element is even
const even = (element) => element % 2 === 0;

console.log(array.some(even));
// expected output: true

ES6 refers to version 6 of the ECMA Script programming language
It is a major enhancement to the JavaScript language, and adds many more
features intended to make large-scale software development easier.

ECMAScript, or ES6, was published in June 2015.
It was subsequently renamed to ECMAScript 2015.