Comparing strings

The localeCompare function returns a number that indicates how a string should be ordered in relation to another string.

console.log('a'.localeCompare('b'))
console.log('b'.localeCompare('b'))
console.log('c'.localeCompare('b'))

This is commonly used in an array sort function to arrange a list of strings into alphabetical order.

const names = ['Zoe', 'Adam', 'Michael', 'Carol']
console.log(names.sort((a, b) => a.localeCompare(b)))