Sort

The sort method sorts the items of an array in a specific order (ascending or descending).

let city = ["California", "Barcelona", "Paris", "Kathmandu"];
let sortedCity = city.sort(); 

console.log(sortedCity);

// Result: ['Barcelona', 'California', 'Kathmandu', 'Paris']

Numbers can be sorted incorrectly when they are sorted. For example, "35" is bigger than "100", because "3" is bigger than "1".

To fix the sorting issue in numbers, compare functions are used. Compare functions defines ort orders and return a negative, zero, or positive value based on the arguments.

const points = [40, 100, 1, 5, 25, 10];
points.sort((a, b) => {return a-b});

// Result: [1, 5, 10, 25, 40, 100]

The sort() method overrides the original array.