Arrays in Javascript

const shopping = ['bread', 'milk', 'cheese', 'hummus', 'noodles'];
console.log(shopping.length);  // 5
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const shopping = ['bread', 'milk', 'cheese', 'hummus', 'noodles'];
shopping[0] = 'tahini';
console.log(shopping);
// shopping will now return [ "tahini", "milk", "cheese", "hummus", "noodles" ]
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const birds = ['Parrot', 'Falcon', 'Owl'];
console.log(birds.indexOf('Owl'));   //  2
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const cities = ['Manchester', 'Liverpool'];
cities.push('Cardiff'); // adds at the END
cities.unshift('Edinburgh');  // adds at BEGINNING
cities.pop('Liverpool');
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https://developer.mozilla.org/en-US/docs/Web/JavaScript/Reference/Global_Objects/Array/pop