DEV Community: Nitin Sahu

Queues in Node js

Nitin Sahu — Tue, 01 Feb 2022 16:12:05 +0000

Have you been using node js for a while now? Are you aware of how things work internally in node js? the queues in node js? Doesn’t matter if your answer is yes or no, I will let you in on one little secret which will clear all your doubts regarding how node js works asynchronously under the hood.

Let’s test your knowledge on node js. If you understand the queues in node js, you would be able to solve the below question.

console.log("1"); setTimeout(() => console.log("2"),0); var promise = new Promise(function(resolve, reject) { resolve(); }); promise.then(function(resolve) { console.log('3'); }) .then(function(resolve) { console.log('4'); }); console.log("5");

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Read the full article on readosapien.com

Article link

Can we promote personal articles here?

Nitin Sahu — Tue, 01 Feb 2022 05:56:26 +0000

I've recently started my own blog readosapien with many intentions such as monetizing, self-brand, etc. It's a tech niche blog where we write about programming articles (js, caching, etc), startup news, interview tips and gadgets.

I've recently written some articles that could help fellow developers on this platform.

Just wanted to check if it is possible to add introduction of my article and attach the complete article link it?

Any help on this would be appreciated!

What is one thing in React that you discovered very late?

Nitin Sahu — Sat, 01 May 2021 18:30:11 +0000

Recently I discovered that in nested components, child components are the first to render. Here are some of my observations.

How to test?

Just console something in componentDidMount or useEffect of each component

How to revert this flow?

Use componentWillMount and a react hook equivalent to componentWillMount

Why revert?

There may be a case where some data from API is passed down as props to your child component.
Due to the async nature, there won't be any data to render for the child and you might get the red flag.🛑

What if I don't want to revert?

Using conditional rendering in such cases is the ideal solution

function demo(props) {
    return (
      props.data ? <MyComponent /> : <LoadingAnimations />
    )
}

Do let me know about the basic discoveries you made. 👊

PS

Please let me know if I've made any err in this post. 😅