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Table of Contents
- A general understanding of the internet
- Good knowledge of HTML
- Programming knowledge
What is ECMAScript?
1. Make Web Pages Interactive
- Zooming in or out
- Playing video and audio
- Showing animations
- Allowing them to slide through images
- Revealing information or drop-down menus as viewers click or hover
2. Build Apps
3. Develop Games
Data Types: You are not required to declare data types for variables or define methods as public, private, etc.
Node is usually used to develop API (Application Programming Interfaces). These services are accessed by the client applications, which could be a web application or a mobile application visible to the user. Back-end services fetch data from a database, send emails, manage files, push notifications, manage workflows, etc. Node is powerful when building real-time applications with huge amounts of data.
Here are some advantages of Node:
- Agile: Agile development, i.e., you can develop a quick application prototype.
- Fast: You can develop highly scalable applications with a faster response time.
- Trusted: Walmart, Paypal, Uber use Node and have shown significant benefits in quick application development, using fewer resources, and achieving fast response time.
- Secure and diverse: Being open-source, it has a large ecosystem of libraries that you could use.
Below is a sample Node code.
console.log(‘My first Node Program’);
Note: Objects such as ‘document’ or ‘window,’ specific to the User Interface, do not exist in Node as it is a back-end environment. Instead, it has its own set of objects for the backend.
Frameworks speed up application development, since you can use reusable code instead of rewriting it.