Udemy – Building Interactive Websites with Next JS, React, Leaflet

Welcome to Building Interactive Websites with Next JS, React, Leaflet course. This is a comprehensive project based course where you will learn how to build real estate marketplace and customer feedback analytics websites using Javascript, HTML, and CSS. This course is a perfect combination between web development and web design, making it an ideal opportunity to practice your programming skills while improving your technical knowledge in Javascript. In the introduction session, you will learn the basic fundamentals of Next JS, such as getting to know its use cases, technical limitations, and main features. Then, in the next section, we will start the first project. We are going to build a real estate marketplace website using Next JS and Leaflet JS, This website will have three main features.

The first feature is an interactive map that displays property listings using Leaflet JS, where each property is represented by a clickable marker showing detailed information such as price, address, number of bedrooms and bathrooms, property type, and contact details, all rendered dynamically with React. The second feature is a built in mortgage calculator developed with plain JavaScript that allows users to input their income and loan terms to estimate the maximum property price they can afford, along with a clear breakdown of monthly payments including mortgage principal, taxes, and insurance. The third feature is a user friendly property listing form created using React and HTML, where users will be able to submit new property listings by entering details like location, price, property type, and contact information, then it will be instantly added to the map without reloading the page.

Afterward, in the second project, we are going to build a customer feedback analytics website using Next JS. This website will also have three main features. The first feature allows users to manually type in a customer feedback through a simple text input form, once submitted, the system will process the text and instantly determine whether the sentiment is positive, negative, or neutral, using a sentiment analysis function facilitated by Javascript library. The second feature enables users to upload a CSV file containing multiple customer feedbacks, where the system will automatically analyze each feedback, assign sentiment labels, and display the results in a well structured format with clear summaries and visual highlights.

The third feature presents a dynamic pie chart, built using a charting library, that visualizes the proportion of positive, negative, and neutral feedback, helping users quickly interpret the overall sentiment trends across all analyzed customer data. Lastly at the end of the course, we will conduct testing to make sure the websites are fully functioning and all logics have been implemented correctly, we will be focusing on two testing objectives, performance testing and functional testing.

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