what does .pop() do javascript code example

Example 1: pop js

const plants = ['broccoli', 'cauliflower', 'cabbage', 'kale', 'tomato'];

console.log(plants.pop());
// expected output: "tomato"

console.log(plants);
// expected output: Array ["broccoli", "cauliflower", "cabbage", "kale"]

Example 2: javascript array pop

let animals = ["dog","cat","tiger"];

animals.pop(); // ["dog","cat"]

animals.push("elephant"); // ["dog","cat","elephant"]