![]() ![]() This helps in adding and deleting any HTML tag very easily using javascript and modify your HTML to change its look and feel based on different devices and requirements. Manipulating HTML Pages - Javascript helps in manipulating HTML page on the fly. I'm going to list few of them here:Ĭlient side validation - This is really important to verify any user input before submitting it to the server and Javascript plays an important role in validting those inputs at front-end itself. It has it's presence in almost every area of software development. Applications of Javascript ProgrammingĪs mentioned before, Javascript is one of the most widely used programming languages (Front-end as well as Back-end). The Javascript world is just too large and too much new is happening. It is really impossible to give a complete list of all the available Javascript frameworks and libraries. There are many useful Javascript frameworks and libraries available: Just to give you a little excitement about Javascript programming, I'm going to give you a small conventional Javascript Hello World program, You can try it using Demo link But one thing for sure, to learn any programming language, not only Javascript, you just need to code, and code and finally code until you become expert. There could be 1000s of good reasons to learn Javascript Programming. Great thing about Javascript is that you will find tons of frameworks and Libraries already developed which can be used directly in your software development to reduce your time to market. You can navigate over to different job sites to see what having JavaScript skills looks like in the job market. This opens many opportunities for you as Javascript Programmer.ĭue to high demand, there is tons of job growth and high pay for those who know JavaScript. JavaScript usage has now extended to mobile app development, desktop app development, and game development. You can develop your website with a console like look and feel and give your users the best Graphical User Experience. Javascript helps you create really beautiful and crazy fast websites. For example Chrome, Mozilla Firefox, Safari and every browser you know as of today, supports Javascript. Javascript is everywhere, it comes installed on every modern web browser and so to learn Javascript you really do not need any special environment setup. Once you learnt Javascript, it helps you developing great front-end as well as back-end softwares using different Javascript based frameworks like jQuery, Node.JS etc. Javascript is the most popular programming language in the world and that makes it a programmer’s great choice. I will list down some of the key advantages of learning Javascript: Javascript is a MUST for students and working professionals to become a great Software Engineer specially when they are working in Web Development Domain. JavaScript is very easy to implement because it is integrated with HTML. It is complimentary to and integrated with Java. It is designed for creating network-centric applications. JavaScript is a lightweight, interpreted programming language. Step 4 − In the last step, we will display the items contained by the new array because those values are the value which has duplicates in the original array.īelow code example will show how we can get duplicate values in an array.PDF Version Quick Guide Resources Job Search Discussion.After updating the new array, it will return it. Step 3 − In the next step, we will create a JavaScript function that contains the original logic of finding duplicates using nested for loops and updates the new array created in the previous step with the values that are repeated.Step 2 − We will create a new empty array that holds the items that are repeated in the original array.Step 1 − First we need to create a JavaScript array in which we will search for the duplicate elements.In this method, we use two for loops that are nested, where the first loop indicates the array item for which we search for duplicates in the remaining array, while another loop will traverse the array for remaining items and compares it with the item that is contained by the first loop. Traversing the array using a nested for loop to find the duplicates is the most basic and naive approach, which takes O(n 2) time and O(n) extra space to solve the problem. Let us discuss all of the above approaches to find duplicates in the JavaScript array − By Simply Traversing the Array Using the filter() and indexOf() Methods.In this tutorial, we will discuss how we can find duplicate or repeating values in a JavaScript array using different methods or approaches to reach the solution to this problem.īelow is the list of the approaches or methods we can use to solve the problem of finding duplicates − ![]()
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