Removing Items in Array - Javascript

pop.() to remove and save that item into a variable

const cities = ['Manchester', 'Liverpool'];
const removedCity = cities.pop();
console.log(removedCity);   // "Liverpool"
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const cities = ['Manchester', 'Liverpool'];
cities.shift();
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In this call to splice(), takes two arguments

1. where to start removing items,
2. how many items should be removed.

const cities = ['Manchester', 'Liverpool', 'Edinburgh', 'Carlisle'];
const index = cities.indexOf('Liverpool');
if (index !== -1) {
  cities.splice(index, 2);
}
console.log(cities);     // [ "Manchester", "Carlisle" ]
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