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: .pop js

let monTableau = ['un', 'deux','trois', 'quatre'] ;
monTableau.pop() ; 
console.log(monTableau) ;