Which is the best and recent online course about react or react-native? 💻💻

MariLuz — Tue, 13 Apr 2021 19:00:47 +0000

I want to catch up with react.
Courses I take:

FreecodeCamp, I like this but I think react course is very simple.
Nodeschool
CodeAcademy

Wich error have you been struggling more with?

MariLuz — Thu, 09 Jan 2020 15:04:55 +0000

I would like to start a thread with the errors you have been struggling for a long time and the solution was very easy.
One of my friends was two days trying to fix a jest test and the error was the order of the moduleFileExtensions in the package.json 😂

CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.

MariLuz — Mon, 23 Dec 2019 12:21:28 +0000

Hello! I'm trying to use GitHub Graphql and in some petitions, I get the error in the title.
Do you know how to solve it? I tried with a public proxy but I get anyway...
Thanks!

method: 'POST',
mode: 'cors',
origin: 'myapp.url',
body: JSON.stringify({query}),

How do you prefer to organize the code of a react+Redux App?

MariLuz — Wed, 20 Nov 2019 12:54:04 +0000

I'm trying to organize my code in the best way possible, I would like to know how you do it to get ideas :)

Visualizing Hacktoberfest 2018

MariLuz — Wed, 13 Nov 2019 16:33:38 +0000

I know this post is about the last year, I would like if you want a 'Visualizing Hacktoberfest 2019' :)

The objective of this event is to increase contributions in Open Source projects. If you make four pull requests to an Open Repository in GitHub, you win a free t-shirt and stickers.
GitHub hosted more than 96M projects in the last year. This included over 200M pull requests.
As someone who is creating visualizations at Scope.ink about productivity and the real impact of tasks in a repository, this is very interesting to me. I want to show you some interesting visualizations on this event and give some useful data 😃
Are collaborations in October increasing?
What I have learned making visualizations, is that in Open Source repositories the largest users don’t contribute more than three times. I think the reason for this being that after this user fixes the problem, they abandon the project entirely.
I believe HacktoberFest motivates people to collaborate.

Contributions in Open Source Project sort by authors.

So I decided to check how many pull requests were being opened throughout a year in some popular repositories:

Number of Pull Requests through 2018 in four different repositories

We can see that October is the top month for pull requests contributions. However, while making these visualizations, I found a case that shocked me:

Number of Pull Requests in freeCodeCamp repository
The freeCodeCamp repository had more than 14000 pull requests! But…
Are these contributions good?

Seeing the previous visualizations we cannot understand if those contributions were useful or not. First, we should look at how many were merged or accepted, understanding that these are the pull requests which have passed a review:

Unmerged and merge pull requests in the 2018 Hacktoberfest, some repos
But freeCodecamp remained the exception. So many pull requests remained unmerged or marked as invalid.

There were useless pull requests such as:

Real contribution in freeCodecamp repository

My theory is that freeCodeCamp made an article calling developers to earn a free t-shirt.
Not every pull request was useless
I think freeCodeCamp was a curious case. In other repositories, we have seen that the number of useless pull requests was not as excessive. In this visualization, we can see the modified files in 100 pull requests from the ghost’s repository. There is a great variety, which indicates to us that there were contributions of all types.

Files changed in 100 pull requests

DEV Community: MariLuz

Which is the best and recent online course about react or react-native? 💻💻

Wich error have you been struggling more with?

CORS policy: No 'Access-Control-Allow-Origin' header is present on the requested resource.

How do you prefer to organize the code of a react+Redux App?

Visualizing Hacktoberfest 2018