Scrum-ptious Programming

Scrum-ptious Programming

Node.js, in its essence, is a single thread process. It does not expose child threads and thread management methods to the developer. Technically, Node.js does spawn child threads for certain tasks such as asynchronous I/O, but these run behind the scenes and do not execute any application JavaScript code, nor block the main event loop.

How does Node.js handle child threads?

Node.js, in its essence, is a single thread process. It does not expose child threads and thread management methods to the developer. Technically, Node.js does spawn child threads for certain tasks such as asynchronous I/O, but these run behind the scenes and do not execute any application JavaScript code, nor block the main event loop.

If threading support is desired in a Node.js application, there are tools available to enable it, such as the ChildProcess module.

How can you listen on port 80 with Node?

The simplest solution: safely configure your node app to run on port 80.

  1. sudo apt-get install libcap2-bin.
  2. sudo setcap cap_net_bind_service=+ep /path/to/node.
  3. Ta da! You’re done.

What tools can be used to assure consistent style?

Enter JSLint. According to its website, JSLint is a “JavaScript Code Quality Tool.” Its author, Douglas Crockford, is well known for his work on the development of JavaScript (also known as ECMAScript) and JSON. JSLint helps JavaScript programmers by making sure certain coding conventions are followed. JSLint is based on the premise of strict mode, which is available in the fifth edition of the ECMAScript standard. With strict mode, you are making your code run with a set of more restrictive rules than normal.

List out the differences between AngularJS and NodeJS.

KEY DIFFERENCES

  • Node.js is a cross-platform run-time environment for applications written in JavaScript language, whereas AnglarJS is an open-source web application development framework.
  • Node needs to be installed on the computer system whereas AnglarJS needs only AngularJS file just like any other JavaScript file to use it in applications.
  • Node.JS is a useful tool to build fast and scalable server-side networking applications while AngularJS is best suited for building single-page client-side web applications.
  • Node.JS is an ideal language for developing small size projects, and AngularJS is an ideal language for creating highly interactive web apps.
  • Node.JS is written in C, C++, and JavaScript languages whereas AngularJS is written entirely in JavaScript.
  • Important Node.js frameworks like Sails.js, Partial.js, and Express.js while AngularJS is itself web application framework.

What are the advantages of NodeJS?

Node JS allows developers to execute their code on the server-side. It provides a faster way to write scripts that are scalable and light. Developers can write real-time applications, and at the same time, it provides scope for mobile application development.

One can easily utilize Node JS for the front end as well as for back-end development as it allows the use of the same JavaScript. Server-side capabilities are provided extensively in Node JS, a developer can listen to and reply to HTTP requests on the computer, listen to traffic network and at the same time can access the database from a computer directly. Node JS uses an event-based model to address scalability, and allow rich JavaScript libraries for JavaScript modules which helps in simplify the coding.

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