pop(), shift(), or splice() JavaScript.

// Creating an Array and Initializing with Values
let courses = ["HTML", "CSS", "Javascript", "React", "Node.js"];
console.log("Original Array: " + courses);
 // Removes and returns the last element
let lastElement = courses.pop();
console.log("After Removing the last elements: " + courses);
 // Removes and returns the first element
let firstElement = courses.shift();
console.log("After Removing the First elements: " + courses);
 // Removes 2 elements starting from index 1
courses.splice(1, 2);
console.log("After Removing 2 elements starting from index 1: " + courses);

Original Array: HTML,CSS,Javascript,React,Node.js
After Removing the last elements: HTML,CSS,Javascript,React
After Removing the First elements: CSS,Javascript,React
After Removing 2 elements starting from index 1: CSS