What is the set.clear() method in TypeScript?

// create some sets
let names = new Set<string>(["Theodore", "David", "John", "Janme"])
let evenNumbers = new Set<number>([2, 4, 6, 8, 10, 12])
let booleanValues = new Set<boolean>([true, false])
let countries = new Set<string>(["Nigeria", "Brazil", "Ghana", "Egypt", "Germany"])
// logout all sets
console.log("Before clearing sets")
console.log(names)
console.log(evenNumbers)
console.log(booleanValues)
console.log(countries)
// clear the sets
names.clear()
evenNumbers.clear()
booleanValues.clear()
countries.clear()
// logout empty sets
console.log("After clearing sets")
console.log(names)
console.log(evenNumbers)
console.log(booleanValues)
console.log(countries)