circe | Yet another JSON library for Scala | JSON Processing library
kandi X-RAY | circe Summary
kandi X-RAY | circe Summary
circe is a JSON library for Scala (and Scala.js). Please see the guide for more information about why circe exists and how to use it.
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Currently covering the most popular Java, JavaScript and Python libraries. See a Sample of circe
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circe Examples and Code Snippets
Community Discussions
Trending Discussions on circe
QUESTION
I am trying to find a simple and efficient way to (de)serialize enums in Scala 3 using circe
.
Consider the following example:
...ANSWER
Answered 2022-Jan-23 at 21:34In Scala 3 you can use Mirrors to do the derivation directly:
QUESTION
I created a function in js that lets me choose a random book from a list.
...ANSWER
Answered 2022-Feb-21 at 18:43First, your button needs to call a function - not console.log
- for example:
Click me!
Then you need that function. There are many ways to do this, but an easy way would be to set your books as an array and then use the function to pick a random element from the array and use innerHTML
to display it.
The element on the page to show the picked book:
The book array:
QUESTION
Given a JSON string like this, how can I use Scala and Circe to parse the data into case classes:
...ANSWER
Answered 2021-Dec-09 at 20:00You shouldn't need to write a custom Member
decoder. You can just modify the json before decoding it. Try something like
QUESTION
I would like to find the "inner" circle of a countour calculated in CV2.
Lets assume I have found a contour like the red line in this picture:
It is close to a perfect circle, but in the top-right area it has a "defect". I want to find that defect within that contour. So I can find the min. enclosing circe around that contour via cv2.minEnclosingCircle(contour)
, which results in the blue circle. Now it would be great to also have something like the "opposite", something like the "max. circle within the contour", i.e. the green circle in the image above. Any ideas how to achieve this?
Or is there maybe an easier way to identify a problematic area in the original contour, the one that makes the circle non-perfect?
...ANSWER
Answered 2021-Dec-08 at 09:17Ok for the records: I ended up using this approach to calculate the center of a circle with three points from that circle. I do this three times, every times with 120 degrees rotated, so that even if I would "hit" the broken part of the circle once, I do get the correct circle center two out of three times. Then I take those two results that are the same and I am done.
QUESTION
I am trying to change the color of the placeholder text of a contact form when hovering over it. Is this possible using only html/CSS or is javascript necessary?
You will see in the code below that I have put each input field of the contact form within its own div in order structure it properly on the page, which results in some long and messy code. But otherwise it has worked well. I have the background of the input fields set to change when hovering.
What I don't understand is why using the hover selector on the form to make the text bold works on BOTH the placeholder text and the input text; however, changing the color on hover works ONLY on the input text and NOT to placeholder.
I tried nesting the ::placeholder selector (as well as its counterparts for various web browsers) inside the hover selector in the SCSS document to change the color when hovering but with no luck.
Does anyone have any advice for how to make this placeholder text color change when hovering?
I included some images of the site and my code below.
Thanks!
Contact form as is. Contact form on hover; placeholder text color not changing.
HTML & CSS CODE
...ANSWER
Answered 2021-Dec-02 at 20:50This worked for me!
QUESTION
I've got the following JSON structure and I can't find a good way to parse it in Scala (I'm using circe BTW):
...ANSWER
Answered 2021-Nov-30 at 18:45You need to model that as an ADT and derive a custom Decoder
like this:
QUESTION
ANSWER
Answered 2021-Nov-15 at 15:57final case class Joke(joke: String) extends AnyVal
QUESTION
I am trying to set different versions for the dependencies and plugins on my build.sbt
script, depending the value of the scalaVersion
on a crossCompiled
project.
Here is a reduced and simplified representation of what I have so far:
...ANSWER
Answered 2021-Nov-04 at 20:07Regarding the libraries, an approach that I've often seen in projects is to do it like this:
QUESTION
I have my circe Decoder as shown below. I am confident my Sentiment Decoder works correctly so won't include it below.
...ANSWER
Answered 2021-Sep-11 at 11:44You just missed a downArray
call to parse data
as the array of objects. Working decoder:
QUESTION
I try to create a semi-circe with custom paint. the problem is that it is always drawn from the center. this creates a space at the bottom area that i don't want. how can i crop it?
I have checked this but this question is not answered here: Flutter how to draw semicircle (half circle)
...ANSWER
Answered 2021-Sep-06 at 10:39Rect.fromCircle
has center
argument, and you can pass size
's bottomCenter
value.
Here is a working example:
Custom Painter
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