This post is the follow-up to my previous post, the link is given below.
But today we will take a look at 15+ array methods of an array, let’s take a look at these methods.
.push()
This method can be used to add an element or object to the array.
Example #1: Adding a number to the array.
let arr = [1,2,3];
arr.push(4);
console.log(arr);
// output
// (4) [1, 2, 3, 4]Example #2: Adding an object to the array.
let arr = [{id: 100, name: "Ali"}, {id: 101, name: "Shaan"}];
arr.push({id: 102, name: "Umar"});
console.log(arr);
.pop()
This method removes the last element of the array. pop() and returns the element it removed.
Example #3:
[1, 2, 3, 4, 5].pop()
// output
// 5
const items = ["House", "Car", "Computer", "Mobile"];
items.pop();
// output
// 'Mobile'.shift()
This method removes the first element of the array, and .shift() removes the first item of the array. It changes the original array & returns the shifted element.
Example #4:
const items = ["House", "Car", "Computer", "Mobile"];
items.shift();
// output
// 'House'.unshift()
Add new elements to an array. it adds new elements to the beginning of an array and overwrites the original array.
Example #5:
const items = ["House", "Car", "Computer", "Mobile"];
items.unshift("Table", "Door");
// output
// 6
// modified items
// ['Table', 'Door', 'House', 'Car', 'Computer', 'Mobile']Array methods card
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See you in the next post.
