Access Array Elements from Any Side in JavaScript | JavaScript New Array Method Tutorial

Access Array elements from left or right side, by using array length or without using array length. There is a new Array AT method in JavaScript that simplifies accessing Array elements from end of Array. Array is a variable that can hold more than one value. Simply it's a list of items. We can take a variable with few elements and look into JavaScript Arrays and JavaScript Array Methods. We will also learn JavaScript Array new method. You will learn new things in this JavaScript array tutorial. Here is an Array called items holding bunch of numbers const items = [1, 2, 3, 4] We can also take strings instead of numbers const items = ['Apple', 'Orange', 'Peach', 'Grapes'] I can access elements in this array by using index number. Array index starts with zero. I will type items zero to access first element in array. items[0] items[1] items[2] items[3] What if I want to access last element in array? For that I will need to know length of Array (array length is number of array elements). For that I would type items.length -1. This would give me last item in Array. items[items.length - 1] Access second last element items[items.length - 2] This would give me 3. items[items.length - 3] items[items.length - 4] To access elements from left to right we can also use at method. items.at(0) The at() method takes an integer value and returns the item at that index, allowing for positive and negative integers. Negative integers count back from the last item in the array. items.at(1) items.at(2) items.at(3) We can access elements from end without calculating length of Array by using at method. This is called Relative Indexing Method that is new feature in JavaScript. Relative indexing via negative indices is a feature that enjoys popularity in other languages like Python. items.at(-1) -1 means the last element items.at(-2) items.at(-3) items.at(-4) So Array at method simplifies things a little bit where we do not have to find length of Array to access elements from the end. ✅ How To Hide / Protect JavaScript Code - Techniques and Tools https://youtu.be/8VyzRlxo2-k ✅ React JS UNDEFINED Solution | Reactjs Learning | Learn ReactJS & JavaScript Debugging Fast https://youtu.be/0IvxCxcEBPo ✅ Calculate Sum or Total from Values in Array & Array Object | Learn JavaScript | Reduce Method https://youtu.be/Xw7G2b80dDg ✅ Get URL Parameters in JavaScript | URLSearchParams https://youtu.be/CZP1iQFQjEY ✅ DIV to PDF, Iframe to PDF using JavaScript Only (with CSS & Images Support) https://youtu.be/DV2tAG5E-F0 ✅ How To UnMinify JavaScript Minified Files Easily | Decrypt Complex JavaScript Code https://youtu.be/uh8_Rt4Qam8 ✅ Toggle Class in Vanilla JavaScript | Learn JavaScript https://youtu.be/IdtwowBlfmI ✅ How to Execute a JavaScript File by using NPM https://youtu.be/2xcoenAdSWs ✅ Get User's Location (Country, State, City) with Free Unlimited API Access | PHP & JavaScript https://youtu.be/_P8_JUaoNgs ✅ Replace jQuery with Vanilla JavaScript Code Easily | jQuery vs JavaScript https://youtu.be/toJ3vRUMf2g ✅ Toggle in Vanilla JavaScript https://youtu.be/ebDCyf-JFOw ✅ MINIFY JAVASCRIPT FILES & FOLDERS in Multiple Ways (Command Line & Code Editor) https://youtu.be/umVoV4ak0HA ✅ JavaScript vs jQuery | Difference between JavaScript and jQuery https://youtu.be/PrBSuz7rPlc ✅ JavaScript Variable Redeclare & Reassign | VAR vs LET vs CONST | Practical Examples https://youtu.be/9NNva3x0awQ Thank You! 👍 LIKE VIDEO 👊 SUBSCRIBE 🔔 PRESS BELL ICON ✍️ COMMENT Channel: https://www.youtube.com/webstylepress Website: https://www.webstylepress.com FaceBook: https://www.facebook.com/webstylepress Twitter: https://twitter.com/webstylepress GitHub: https://github.com/webstylepress #JavaScript #JS #Array #ArrayMethod #ArrayAt #JavaScriptArray #ArrayMethods #WebStylePress #webdevelopment