scratchpad | Proofs of Concept. Just fucking around. | Frontend Framework library
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kandi X-RAY | scratchpad Summary
Place to shove various proofs of concept code. Just fucking around.
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QUESTION
Eclipse Version - 4.19.0 Maven Version - 3.8.1
In JUnit I am trying to implement @ParameterizedTest using @CsvSource or @MethodSource. Both are failing due to org.junit.jupiter.api.extension.ParameterResolutionException:
Can someone please help as to what am I doing wrong.
Following is the class where I implemented stack functionality.
...ANSWER
Answered 2021-May-28 at 13:45You'd need to accept the defined parameters as argument in you test case and then use them.
QUESTION
I'm trying to use apache POI lib, to load xlsx files in Java program.
As per doc here https://poi.apache.org/components/ I started with the following components (I'm using maven)
...ANSWER
Answered 2021-May-03 at 07:54It came out to be an IntelliJ issue: mvn was compiling correctly but running via intellij was not neither a rebuild solved the issue
the only wayout was to:
- close the project
- cancel .idea folder
- re-import the project
QUESTION
I'm sure there is a simple answer to this, I've just completed some learning and am now trying to apply it. Annoyingly I've gotten flexbox etc to do what I want but I've run into this issue I can't workaround - even though I'm sure it's simple.
In the HTML below I have an image with text below it and I want no gap between the text box and the image - but on is there and I can't remove it.
Thanks for helping me learn.
...ANSWER
Answered 2021-Apr-18 at 17:11Something like this? The card-image
div was creating the bottom gap above the text.
QUESTION
I am currently reading the first volume of the softwarefoundations series. In one of the exercises I am supposed to write a function which turns a natural number (unary form) into the equivalent binary number.
This is my code/approach:
...ANSWER
Answered 2021-Mar-12 at 11:45To retain good logical properties, all functions definable in Coq are terminating. To enforce that, there is a restriction on fixpoint definitions, like the one you are trying to do, called the guard condition. This restriction is roughly that the recursive call can only be done on subterms of the argument of the function.
This is not the case in your definition, where you apply nat_to_bin
to the terms (Nat.div n 2)
and (Nat.modulo n 2)
which are functions applied to n
. Although you can mathematically prove that those are always smaller than n
, they are no subterms of n
, so your function does not respect the guard condition.
If you wanted to define nat_to_bin
in the way you are doing, you would need to resort to well-founded induction, which would use the well-foundedness of the order on nat
to allow you to call you function on any term you can prove smaller than n
. However, this solution is quite complex, because it would force you to do some proofs that are not that easy.
Instead, I would advise going another way: just above in the book, it is suggested to define a function incr : bin -> bin
that increments a binary number by one. You can use that one to define nat_to_bin
by a simple recursion on n
, like this:
QUESTION
I'm trying to create a request to Amazon Selling Partner API following this guide.
The first part: Creating an access has already been taken care of here.
The documentation of the API for Orders can be found here.
I'm trying to invoke the GET /orders/v0/orders
operation.
Connecting to the API
The only mandatory parameter for this operation is the MarketplaceIds
based on the documentation.
In order to get the orders we need to sign our request. Here is my code so far:
...ANSWER
Answered 2021-Mar-10 at 07:09- In the case of
UrlFetchApp
, whenpayload
is used, even whenmethod
isGET
, it is requested as the POST request. It seems that this is the current specification. user-agent
cannot be changed forUrlFetchApp
.
As a precondition, when your values for authorizing are correct values for requesting to the endpoint, your script can be modified by reflected above points as follows.
I thought that your error message might be due to the difference between the method of "GET" and "POST". At first, please test the following modification. When an error occurs, please show it.
Modified script: From:QUESTION
I tried running Amazon MWS Scratchpad in this site https://mws.amazonservices.com/scratchpad/index.html
. And it works fine and I got an xml result
But when I go to request Details and copy the string to sign and all the parameters needed, I POST REQUEST and copy the whole request to postman
What i got is Parameter signature cannot be empty
Any tips why I get a different response? Is there any rest API i can find? Thanks for answers.
...ANSWER
Answered 2021-Feb-23 at 23:37Scratchpad autogenerates the signature and passes it as a parameter. If you're trying to create your own integration from scratch, you'll need to generate the signature yourself.
This is done by:
- hashing the 'string to sign (with the correct timestamp in the exact same format, line breaks included)' w/ a sha-256 hashing algorithm
- Digesting that hash to base-64
- Then passing that result as the Signature param
- NOTE: mws is REALLY finnicky about it's timestamp formats as well, so make sure you compare yours with whatever scratchpad has it formatted as or it will reject your signature
Hope this helps, I remember this being a nightmare when I built out an integration from scratch a few months ago. Took me around 10 hours to get my signature generator right.
QUESTION
I want to know which is the correct / best HTML format?
freeCodeCamp suggests the second format, but when I run that format through an HTML validator, it gives me errors.
1:
...ANSWER
Answered 2021-Mar-01 at 14:26To write multiple lines of pre-formatted code, you should use a element inside a
QUESTION
I created a project with 2 folders src/
and test/
. The src/
directory contains 1 file for each module, and all functions in a given file are prefixed with
ANSWER
Answered 2021-Feb-12 at 16:46I did a quick look into KX developer couple of months ago.
What I gathered from there is that for regular KDB development, it was not the best. The modules weren't intuitive and as you said to cause problems when you try to use them anywhere else other than KX developer. There might be a solution around it and probably fastest response would be messaging KX directly and asking their opinion on it.
If you are trying to use KX developer with GitHub then would use KX developer only for checking in and version control rather than actual development. Otherwise, I would steer clear of it. Consider it as an Apple product, it works better if everything tech you use is Apple.
QUESTION
in my nav a part in css, when i do margin-left: border - bottom moves with a link too. But that is not something i want. How can i let border bottom stay where it stays, but give margin-left for my links in navbar? I tried to search but I couldn't find a solution to this. Please help.
The question wants me to add more details, but I added all, so just filling down to meet the requirement to ask this question.
...ANSWER
Answered 2021-Jan-02 at 10:23If you need a "margin" but don't want the border to move. You can use CSS text-indent
only add this lines to CSS:
QUESTION
I'm trying to connect to the remote atlas bank, however it looks like I'm being redirected to localhost. I configured spring.data.mongodb.uri as usual, that same project was working a few days ago and other projects with the same structure are working normally. With the same connection uri, I can connect via the mongoDB client. I'm using spring boot 2.6, below is the dependencies used via gradle
...ANSWER
Answered 2020-Jun-28 at 18:42With Auto-Configuration "ON" it uses default values which points to localhost:27017. That's why you saw comments telling to exclude MongoAutoConfiguration and MongoDataAutoConfiguration in SpringBootApplication/EnableAutoConfiguration annotations.
I would suggest you configure mongodb programmatically (instead of auto) and override these props.
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