Asynchronous JavaScript Requests from Udacity

What's inside

Syllabus

In this lesson, you'll learn why you should use asynchronous data requests. Use the `XHR` object to send and receive data asynchronously.

In this lesson, you'll compare using `XHR` with using jQuery's Ajax method. You'll send and receive data using jQuery's Ajax methods and learn how jQuery's Ajax works under the hood.

In this lesson, you'll use JavaScript Promises to create a fetch request and handle the returned data asynchronously. You'll also learn how to handle errors for failed requests.

Good to know

Know what's good

, what to watch for

, and possible dealbreakers

Covers essential JavaScript tools and techniques, such as Ajax and jQuery, for making dynamic web applications

Provides hands-on exercises to reinforce concepts and build practical skills

Taught by experienced instructor Richard Kalehoff, who is recognized for his work in web development

Suitable for beginners with no prior knowledge of Ajax or JavaScript

Free to access, making it accessible to learners of all backgrounds

May require prior knowledge of JavaScript fundamentals

Activities

Be better prepared before your course. Deepen your understanding during and after it. Supplement your coursework and achieve mastery of the topics covered in Asynchronous JavaScript Requests with these activities:

Review basic JavaScript syntax

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Refresh understanding of JavaScript syntax, ensuring a solid foundation before delving into advanced concepts.

Browse courses on JavaScript

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Revisit online resources or tutorials covering JavaScript syntax
Take practice quizzes or coding challenges to test your comprehension

Read 'JavaScript: The Good Parts'

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Expand knowledge on JavaScript fundamentals and best practices by reading a highly-regarded book on the topic.

View A Million And One Random Digits on Amazon

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Obtain a copy of 'JavaScript: The Good Parts'
Read through the book, taking notes and highlighting key concepts
Apply the principles learned in the book to your own JavaScript code

Watch videos on asynchronous programming techniques

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Gain insights into asynchronous programming concepts by watching informative videos.

Browse courses on Asynchronous Programming

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Search for reputable sources offering videos on asynchronous programming
Take notes and highlight key concepts while watching the videos
Discuss the concepts learned with peers or mentors

Five other activities

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Gather resources on asynchronous programming

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Build a comprehensive collection of resources to support understanding of asynchronous programming principles and techniques.

Browse courses on Asynchronous Programming

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Search for articles, tutorials, and videos on asynchronous programming
Organize and categorize the resources in a accessible manner
Share the compilation with peers or contribute it to an online repository

Practice using the jQuery library

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Enhance proficiency in using the jQuery library for DOM manipulation and event handling.

Browse courses on jQuery

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Set up a development environment for jQuery
Complete coding exercises that involve using jQuery selectors, events, and effects
Build a simple web page that utilizes jQuery for enhanced interactivity

Follow a tutorial on jQuery's Ajax methods

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Supplement learning by following a tutorial and practicing using jQuery's Ajax methods for asynchronous data handling.

Browse courses on jQuery

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Find a reputable tutorial on jQuery's Ajax methods
Follow the tutorial step-by-step
Experiment with the code examples provided in the tutorial

Complete XHR coding exercises

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Reinforce asynchronous data request concepts by completing coding exercises.

Browse courses on Ajax

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Create a new JavaScript file
Use the XHR object to send an asynchronous request
Parse the response and display the data in the browser

Build a simple web application using JavaScript Promises

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Apply asynchronous data handling skills by building a web application that utilizes JavaScript Promises.

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Design the application's functionality and user interface
Create the necessary HTML, CSS, and JavaScript files
Implement JavaScript Promises to handle asynchronous data requests
Test and debug the application

Career center

Learners who complete Asynchronous JavaScript Requests will develop knowledge and skills that may be useful to these careers:

Machine Learning Engineer

Machine Learning Engineers are responsible for building and maintaining machine learning models. This course's focus on asynchronous data requests could be helpful to you in building machine learning models that are fast and scalable, even when dealing with large amounts of data.

See salaries and explore the career path for Machine Learning Engineer

Data Scientist

Data Scientists are responsible for collecting, analyzing, and interpreting data to help organizations make informed decisions. This course's focus on asynchronous data requests could be helpful to you in gathering and working with large data sets in a fast-paced work environment. Asynchronous data requests help reduce load and wait times and could be a crucial skill in your work.

See salaries and explore the career path for Data Scientist

Software Engineer

Software Engineers are responsible for the design, development, and maintenance of software systems. This course's focus on asynchronous data requests could be helpful to you in building software systems that are fast and scalable, even when dealing with large amounts of data.

See salaries and explore the career path for Software Engineer

Full-Stack Developer

Full-Stack Developers are responsible for both the front-end and back-end development of a website or web application. This course's focus on asynchronous data requests could be helpful to you in building full-stack web applications that are fast and scalable, even when dealing with large amounts of data.

See salaries and explore the career path for Full-Stack Developer

Back-End Developer

Back-End Developers are responsible for the logic and functionality of a website or web application. This course's focus on asynchronous data requests could be helpful to you in building web applications that are fast and scalable, even when dealing with large amounts of data.

See salaries and explore the career path for Back-End Developer

Front-End Developer

Front-End Developers are responsible for the design and implementation of a website's or web application's user interface. This course's focus on asynchronous data requests could be helpful to you in building user interfaces that are fast and responsive, even when dealing with large amounts of data.

See salaries and explore the career path for Front-End Developer

User Experience (UX) Designer

UX Designers are responsible for the design of a website or web application's user interface. This course's focus on asynchronous data requests could be helpful to you in designing user interfaces that are fast and responsive, even when dealing with large amounts of data.

See salaries and explore the career path for User Experience (UX) Designer

Product Manager

Product Managers are responsible for the planning, development, and launch of new products. This course's focus on asynchronous data requests could be helpful to you in gathering and working with data to make informed decisions about product development.

See salaries and explore the career path for Product Manager

Project Manager

Project Managers are responsible for planning, executing, and closing projects. This course's focus on asynchronous data requests could be helpful to you in gathering and working with data to make informed decisions about project management.

See salaries and explore the career path for Project Manager

Business Analyst

Business Analysts are responsible for analyzing business processes and making recommendations for improvement. This course's focus on asynchronous data requests could be helpful to you in gathering and working with data to make informed decisions about business process improvement.

See salaries and explore the career path for Business Analyst

Cybersecurity Analyst

Cybersecurity Analysts are responsible for protecting an organization's computer systems and networks from unauthorized access. This course's focus on asynchronous data requests could be helpful to you in writing software that prevents malicious or unauthorized requests to an organization's network.

See salaries and explore the career path for Cybersecurity Analyst

Data Analyst

Data Analysts help companies make sense of their data. They gather data, analyze it, and make recommendations that aid in decision-making. This course's focus on asynchronous data requests could be helpful to you in gathering and working with large data sets in a fast-paced work environment. Asynchronous data requests help reduce load and wait times and could be a crucial skill in your work.

See salaries and explore the career path for Data Analyst

Marketing Manager

Marketing Managers are responsible for planning and executing marketing campaigns. This course's focus on asynchronous data requests could be helpful to you in gathering and working with data to make informed decisions about marketing campaign execution.

See salaries and explore the career path for Marketing Manager

Database Administrator

Database Administrators are responsible for keeping an organization's structured data secure, accessible, and recoverable. Database Administrators may utilize asynchronous data requests to help write data to a database, which can improve system speed and user experience.

See salaries and explore the career path for Database Administrator

Sales Manager

Sales Managers are responsible for leading and managing sales teams. This course's focus on asynchronous data requests could be helpful to you in gathering and working with data to make informed decisions about sales team management.

See salaries and explore the career path for Sales Manager

Reading list

We've selected six books that we think will supplement your learning. Use these to develop background knowledge, enrich your coursework, and gain a deeper understanding of the topics covered in Asynchronous JavaScript Requests.

Ajax in Action

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Provides a comprehensive overview of Ajax, including its history, how it works, and how to use it to build interactive web applications. It valuable resource for anyone who wants to learn more about Ajax.

Maintainable JavaScript

Save

Provides a comprehensive overview of best practices for writing maintainable JavaScript code. It valuable resource for anyone who wants to write high-quality JavaScript code.

Maintainable JavaScript: Writing Readable Code

Kindle Edition

(中文) Writing maintainable JavaScript(Chinese Edition)

Paperback

Building Large Scale Web Apps

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Provides a comprehensive overview of JavaScript promises. It valuable resource for anyone who wants to learn more about promises.

Building large scale web apps

Kindle Edition

Backbone.js Blueprints

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Provides a comprehensive overview of JavaScript. It valuable resource for anyone who wants to learn more about JavaScript.

Backbone.js Blueprints by Andrew Burgess (2014-06...

Paperback

$$$$

The Road to GraphQL

Save

Provides a comprehensive overview of React, a popular JavaScript library for building user interfaces. It valuable resource for anyone who wants to learn more about React.

The Road to GraphQL: Your journey to master...

Paperback