Let's understand one by one
- push() method
push() method adds the new element to the end of an existing array.
let arr = [ "Sumit", "Aditiya", "Shubham"];
arr.push("Ayushi");
console.log(arr); // Output: ["Sumit", "Aditiya", "Shubham", "Ayushi"]
- pop() method
pop() method removes the last element of an existing array.
let arr = [ "Sumit", "Aditiya", "Shubham"];
arr.pop();
console.log(arr); // Output: ["Sumit", "Aditiya"]
- include() method
include() method inspects whether the given array holds a specified element or not
let arr = [ "Sumit", "Aditiya", "Shubham"];
console.log(arr.includes("Sumit")); // Output: true
- reverse() method
It reverses the order of an array.
let arr = [ "Sumit", "Aditiya", "Shubham"];
console.log(arr.reverse()); // Output: ["Shubham", "Aditiya", "Sumit"]
- join() method
It unifies all items of an array into a string
let arr = [ "Sumit", "Aditiya", "Shubham"];
console.log(arr.join()); // Output: Sumit,Aditiya,Shubham
- shift() method
It takes off the first element of an array
let arr = [ "Sumit", "Aditiya", "Shubham"];
console.log(arr.shift()); // Output: Sumit
- unshift() method
It adds a new element to the starting of an array
let arr = [ "Sumit", "Aditiya", "Shubham"];
arr.unshift("Radha");
console.log(arr); // Output: ["Radha", "Sumit", "Aditiya", "Shubham"]
- slice() method
slice() method cut out selected items of an array. It takes two parameters: starting and ending position
let arr = [ "Sumit", "Aditiya", "Shubham"];
arr.slice(1,2); // Output: ["Aditiya"]
- toString() method
It changes an array to a string
let arr = [1, 2, 3, 4, 5];
arr.toString(); // Output