Are DOM manipulation and async JavaScript actually tested in frontend interviews?

Yes. DOM manipulation, event handling, Promises, async/await, and API communication are among the most tested JavaScript topics in frontend interviews in 2026. This course covers all of them through practical projects, not just definitions.

Is this course in Hindi?

Yes, completely. Every lesson and project walkthrough is in Hindi. It is part of the JavaScript Mastery Specialization built for Hindi-speaking developers who want a structured, project-driven path into modern JavaScript.

What will I get if I subscribe to this Specialization?

When you enroll in the course, you get access to all of the courses in the Specialization, and you earn a certificate when you complete the work. Your electronic Certificate will be added to your Accomplishments page - from there, you can print your Certificate or add it to your LinkedIn profile.

Is financial aid available?

Yes. In select learning programs, you can apply for financial aid or a scholarship if you can’t afford the enrollment fee. If fin aid or scholarship is available for your learning program selection, you’ll find a link to apply on the description page.

Modern JavaScript in Action: DOM, APIs & Async JS

Modern JavaScript in Action: DOM, APIs & Async JS

本课程是 Master Modern JavaScript Development 专项课程的一部分

位教师：Nikhil Agarwal

包含在中

了解更多

4个模块

深入了解一个主题并学习基础知识。

初级等级

推荐体验

8 小时完成

灵活的计划

自行安排学习进度

4个模块

深入了解一个主题并学习基础知识。

初级等级

推荐体验

8 小时完成

灵活的计划

自行安排学习进度

您将学到什么

Build webpages that actually respond to users. Control what appears, changes, and disappears on screen without touching the HTML file
Stop avoiding asynchronous code. Understand how JavaScript handles time, waiting, and data so your apps never freeze or fail silently
Connect your code to the real internet. Retrieve and display live data from external sources and build full apps that work like production software
Write the ES6+ syntax, modules, and data structures that frontend teams actually use. Close the gap between tutorial code and real project code

要了解的详细信息

可分享的证书

添加到您的领英档案

了解顶级公司的员工如何掌握热门技能

了解关于 Coursera for Business 的更多信息

Petrobras, TATA, Danone, Capgemini, P&G 和 L'Oreal 的徽标

积累特定领域的专业知识

本课程是 Master Modern JavaScript Development 专项课程专项课程的一部分

在注册此课程时，您还会同时注册此专项课程。

向行业专家学习新概念
获得对主题或工具的基础理解
通过实践项目培养工作相关技能
获得可共享的职业证书

该课程共有4个模块

Most beginners learn JavaScript basics but get stuck when they try to build something real. They cannot connect code to a webpage. They have no idea how to fetch live data. This course closes that gap.

Here is what you will mainly cover: • DOM Manipulation & Events Choose elements using getElementById, querySelector, and querySelectorAll. Modify content with textContent and setAttribute. Handle click, input, & form events by using addEventListener and event delegation. • Asynchronous JavaScript Write callback functions. Chain Promises with resolve, reject, and then catch. Make use of async/await. Finally, handle parallel requests with Promise.all & errors with try/catch. • API Integration Make GET, POST, PUT, and DELETE requests implementing the Fetch API and XMLHttpRequest. Parse JSON, apply retry logic, and handle authentication headers. • ES6 Plus Features Apply ES6 Modules, destructuring, spread, rest, Symbols, Maps, Sets, optional chaining, nullish coalescing, and advanced array methods in case of real projects. Taught in Hindi and ideal for beginners and self-taught developers ready to build interactive UIs, async workflows, and API-connected applications. LearnKartS courses on Coursera have reached 200,000 plus learners worldwide. Enroll today!

Learn how to work with objects, arrays, destructuring, spread/rest operators, and modern ES6+ syntax. Strengthen your ability to manage and transform data efficiently in JavaScript.

涵盖的内容

10个视频3个作业

10个视频总计47分钟

Course Introduction1分钟
Objects - Key-Value Data Structure Basics8分钟
Introduction to Arrays & Basic Array Operations (push, indexing) 5分钟
Array Methods (map, filter, reduce) Explained with Examples 7分钟
Object & Array Destructuring6分钟
Introduction to Spread Operator & Array Expansion4分钟
Spread Operator in Objects & Practical Use Cases 7分钟
Rest Operators4分钟
Practice Problems4分钟
What is Async JavaScript2分钟

3个作业总计52分钟

Checkpoint Quiz16分钟
Checkpoint Quiz16分钟
Proficiency Quiz20分钟

Understand asynchronous JavaScript using callbacks, promises, and async/await. Learn how APIs work and how modern applications handle real-time data and communication.

涵盖的内容

13个视频4个作业

13个视频总计69分钟

Synchronous vs Asynchronous5分钟
Introduction to Callbacks & Asynchronous JavaScript4分钟
Callback Function Example & Error Handling Flow 6分钟
Introduction to Promises & Basics of Async Handling 3分钟
Promise Syntax, resolve/reject & then-catch Flow7分钟
Promise Methods (finally, Promise.all) & Real-world Usage5分钟
Introduction to Async/Await & Benefits over Promises 4分钟
Using async & await Syntax with Examples4分钟
Handling Multiple Promises & Error Handling (try-catch)6分钟
Promise.all with Async/Await & Advanced Usage 8分钟
What is API? Basics & Real-World Examples3分钟
Types of APIs & REST API Concepts4分钟
Browser APIs, Custom APIs & Key Benefits8分钟

4个作业总计52分钟

Checkpoint Quiz12分钟
Checkpoint Quiz16分钟
Checkpoint Quiz12分钟
Proficiency Quiz12分钟

Learn how to manipulate the DOM, handle events, work with forms, and communicate with APIs using Fetch and AJAX. Build dynamic and interactive frontend experiences using modern JavaScript.

涵盖的内容

15个视频4个作业

15个视频总计94分钟

Introduction to Fetch API, JSON Basics & Client-Server Communication6分钟
Making GET Requests using fetch() & Understanding Response Object6分钟
Handling JSON Data, Response Parsing & Error Handling Basics6分钟
HTTP Methods (POST, PUT, DELETE) & Sending Data with Headers & Body6分钟
Creating POST Requests & Authentication (Headers, Tokens, JSON.stringify)6分钟
Advanced Fetch: Retry Logic, Timeout Handling & Status Code Management8分钟
AJAX with XMLHttpRequest & axios for APIs6分钟
Introduction to DOM & getElementById() Method6分钟
getElementsByClassName() & getElementsByTagName() Explained6分钟
querySelector() vs querySelectorAll() & CSS Selector-Based Selection7分钟
Modifying Content & Attributes (textContent, setAttribute, getAttribute)6分钟
Styling Elements & Managing Classes (style, classList add/remove/toggle)6分钟
Adding & Removing Elements (createElement, appendChild, remove, insertBefore)7分钟
Event Handling Basics & Common Events (click, mouse, keyboard)6分钟
Form Events, preventDefault() & Handling User Input with Event Listeners6分钟

4个作业总计64分钟

Checkpoint Quiz16分钟
Checkpoint Quiz16分钟
Checkpoint Quiz16分钟
Proficiency Quiz16分钟

Explore advanced ES6+ features including modules, Maps, Sets, event delegation, validation, and modern array methods. Learn scalable and modular JavaScript techniques used in real-world applications.

涵盖的内容

13个视频4个作业

13个视频总计72分钟

Event Delegation4分钟
Form Handling Basics & Submit Event with Validation5分钟
Accessing Input Values & Preventing Default Form Submission5分钟
Real-time Validation (Email Check) & Practice Problem (Dynamic UI Change)8分钟
Basic ES6+ features6分钟
ES6 Modules and Modular JavaScript Programming5分钟
Using Symbols as Object Keys6分钟
Maps: Key-Value Storage, Methods (set, get, has, delete) & Iteration5分钟
end Sets: Unique Values, Operations (add, has, delete) & Union/Intersection8分钟
Basic ES Features (Exponentiation, includes(), Object.values & entries)6分钟
Advanced Operators (BigInt, Nullish Coalescing ??, Numeric Separator)6分钟
Array Methods (flat, at, toSorted, toReversed, toSpliced) Explained7分钟
Summary1分钟

4个作业总计51分钟

Checkpoint Quiz12分钟
Checkpoint Quiz12分钟
Checkpoint Quiz12分钟
Proficiency Quiz15分钟

获得职业证书

将此证书添加到您的 LinkedIn 个人资料、简历或履历中。在社交媒体和绩效考核中分享。

位教师

Nikhil Agarwal

LearnKartS

17 门课程1,477 名学生

提供方

LearnKartS

从 Software Development 浏览更多内容

LearnKartS
Advanced JavaScript
课程
LearnKartS
JavaScript Fundamentals
课程

人们为什么选择 Coursera 来帮助自己实现职业发展

Felipe M.

自 2018开始学习的学生

''能够按照自己的速度和节奏学习课程是一次很棒的经历。只要符合自己的时间表和心情，我就可以学习。'

Jennifer J.

自 2020开始学习的学生

''我直接将从课程中学到的概念和技能应用到一个令人兴奋的新工作项目中。'

Larry W.

自 2021开始学习的学生

''如果我的大学不提供我需要的主题课程，Coursera 便是最好的去处之一。'

Chaitanya A.

''学习不仅仅是在工作中做的更好：它远不止于此。Coursera 让我无限制地学习。'

通过订阅解锁 10,000 多门课程的访问权限
通过在线学位推动您的职业生涯
获取世界一流大学的学位 - 100% 在线
加入全球超过 4,700 家选择 Coursera for Business 的公司

常见问题

Basic JavaScript is enough. Variables, functions, loops, and arrays are all you need. No prior experience with the DOM, async programming, or APIs is required. If you completed the foundational course in this specialization, you are fully ready to continue.

Most async explanations start with theory. This course starts with why async exists, what breaks without it, and builds through callbacks, Promises, and async/await in a sequence that makes sense. Every step is applied to real code before moving on.

You build working projects throughout, including a dynamic profile card, an expense tracker, a student data manager, and a task management dashboard. Every concept connects directly to something that runs in a browser, not isolated drills that go nowhere.

This course builds skills directly relevant to frontend developers, junior JavaScript developers, web developers, and UI developer roles. DOM manipulation, async programming, Fetch API, and ES6+ syntax are the exact skills listed in entry-level frontend job descriptions across India and globally. Combined with HTML and CSS, this course positions you for your first real frontend role or freelance project.

To access the course materials, assignments and to earn a Certificate, you will need to purchase the Certificate experience when you enroll in a course. You can try a Free Trial instead, or apply for Financial Aid. The course may offer 'Full Course, No Certificate' instead. This option lets you see all course materials, submit required assessments, and get a final grade. This also means that you will not be able to purchase a Certificate experience.

Modern JavaScript in Action: DOM, APIs & Async JS

Modern JavaScript in Action: DOM, APIs & Async JS

您将学到什么

要了解的详细信息

了解顶级公司的员工如何掌握热门技能

积累特定领域的专业知识

该课程共有4个模块

JavaScript Data Structures & Modern Syntax (Objects, Arrays & ES6 Features)

涵盖的内容

10个视频总计47分钟

3个作业总计52分钟

JavaScript Asynchronous Programming & APIs

涵盖的内容

13个视频总计69分钟

4个作业总计52分钟

JavaScript Frontend Integration: DOM, Events & API Communication

涵盖的内容

15个视频总计94分钟

4个作业总计64分钟

Modern JavaScript (ES6+): Advanced Features, Data Structures & DOM Interactions

涵盖的内容

13个视频总计72分钟

4个作业总计51分钟

获得职业证书

位教师

提供方

从 Software Development 浏览更多内容

Advanced JavaScript

JavaScript Fundamentals

人们为什么选择 Coursera 来帮助自己实现职业发展

Felipe M.

Jennifer J.

Larry W.

Chaitanya A.

通过订阅解锁 10,000 多门课程的访问权限

通过在线学位推动您的职业生涯

加入全球超过 4,700 家选择 Coursera for Business 的公司

常见问题

更多问题

Modern JavaScript in Action: DOM, APIs & Async JS

Modern JavaScript in Action: DOM, APIs & Async JS

您将学到什么

要了解的详细信息

了解顶级公司的员工如何掌握热门技能

积累特定领域的专业知识

该课程共有4个模块

JavaScript Data Structures & Modern Syntax (Objects, Arrays & ES6 Features)

涵盖的内容

JavaScript Asynchronous Programming & APIs

涵盖的内容

JavaScript Frontend Integration: DOM, Events & API Communication

涵盖的内容

Modern JavaScript (ES6+): Advanced Features, Data Structures & DOM Interactions

涵盖的内容

获得职业证书

位教师

提供方

从 Software Development 浏览更多内容

Advanced JavaScript

JavaScript Fundamentals

人们为什么选择 Coursera 来帮助自己实现职业发展

Felipe M.

Jennifer J.

Larry W.

Chaitanya A.

通过订阅解锁 10,000 多门课程的访问权限

通过在线学位推动您的职业生涯

加入全球超过 4,700 家选择 Coursera for Business 的公司

常见问题

What do I need to know before starting this course?

I have tried learning async JavaScript before, and it never clicked. Will this be different?

Will I build real projects or just small exercises?

更多问题