Closed swati-jagtap closed 3 years ago
const countries = ['Finland', 'Sweden', 'Denmark', 'Norway', 'Iceland'] const names = ['Asabeneh', 'Mathias', 'Elias', 'Brook'] const numbers = [1, 2, 3, 4, 5, 6, 7, 8, 9, 10] const products = [ { product: 'banana', price: 3 }, { product: 'mango', price: 6 }, { product: 'potato', price: ' ' }, { product: 'avocado', price: 8 }, { product: 'coffee', price: 10 }, { product: 'tea', price: '' }, ] //9.1.26--Use findIndex to find the position of Russia if it doesn't exist in the array you will get -1. const findIRussia=countries.findIndex((n)=>n=="Russia") console.log(findIRussia)