DEV Community: Gabriel Nunes

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Gabriel Nunes — Tue, 10 Dec 2024 17:02:01 +0000

8 Type of Load Balancing

Ravin Rau ・ Dec 10 '24

#discuss #webdev #cloudcomputing #programming

What are javascript engines

Gabriel Nunes — Sun, 06 Jun 2021 02:33:02 +0000

JavaScript engines is a complex topic, and knowing about these engines you will code even better, and to code optimized for web.

["Virtual Machines"]

A JavaScript engine has a type of "virtual machine" and this high-level language was designed for web-development. There are many "virtual machines" I explain later on this topic.

[What is JavaScript engine]

The basic job of JavaScript engine is to take a piece of code, and convert it so fast, optimizing code and it can be interpreted by the browser.

In each JavaScript engine has your own particular version followed by ECMAScript. There are many different engines world-wide, each one is designed to work.
i.e.: Node.js is one of the awesome and known engines. Node otherwise, is good for runtime environment. And so on...

Those engines and a huge variety are available to analyze, parse, and execute client-side code or server-side (Node.js) in every browser version.

I hope you all enjoyed,
thanks for reading!

How Try/catch works?

Gabriel Nunes — Fri, 05 Mar 2021 03:42:50 +0000

Look this following image

According to the image, it will first try the try block, if it finds an error, it will go to the catch block, passing an argument (error or err or even e) are the parameters most often used by developers, where it passes the error's StackTrace.
You can pass a different stacktrace, if you notice in the else statement there is a "throw new Error()"; this is the one that will be responsible for giving a custom stacktrace.

Anyway, I hope I clarified your questions about Try/Catch statements, and this is my first post here ;)

See you