Sort

The sort method sorts the items of an array in a specific order (ascending or descending). By default, the sort method sorts the elements as strings and arranges them in ascending order based on their UTF-16 code unit values.

Here's the syntax for using sort:

array.sort([compareFunction]);

The compareFunction argument is optional and specifies a function that defines the sort order. If omitted, the elements are sorted in ascending order according to their string representation.

For example:

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

console.log(sortedCity);

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

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

• A negative value if a should be sorted before b
• A positive value if a should be sorted after b
• 0 if a and b are equal and their order doesn't matter

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

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