crow | Crow is very fast and easy to use C++ micro web framework | HTTP library
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Crow is C++ microframework for web. (inspired by Python Flask).
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QUESTION
I am trying to display a series of cards (components) that each carry a number that increments each time a new component is created. The problem is that instead of adding the value is concatenating and I don't really know how to solve it because I'm a bit new to react. I have tried to use valueAsNumber or parseInt() but either it doesn't let me or it doesn't work.
Here is my code:
...ANSWER
Answered 2022-Apr-17 at 17:20The problem is you event.target.value
is a string
. If you say "1" + 1
you will get 11
.
You'll need to convert the value to a number first before trying to do Math on it.
Doing Number(strNumber)
will convert a string
value to a number
if the string
is a valid number
.
In you're specific use case here all you'd need to do is change the handleClick
function to this:
QUESTION
I'm new on react JS and I'm getting error of invalid hooks call in this code. The error message is:
Uncaught Error: Invalid hook call. Hooks can only be called inside of the body of a function component. This could happen for one of the following reasons:
- You might have mismatching versions of React and the renderer (such as React DOM)
- You might be breaking the Rules of Hooks
- You might have more than one copy of React in the same app
And my API is not running due to this error. This HandleLogin function is in a separate file and I'm importing this function into the protected routes.js file My code is:
...ANSWER
Answered 2022-Apr-10 at 21:03React hooks can only be called from React functions and custom hooks. They cannot be called in callbacks. Move the useNavigate
hook call out of the callback and into the main component body rendering the routes. You'll need to also move the handleLogin
callback into the parent component so it can access the in-scope navigate
function.
Example:
QUESTION
I'm working to a web app with React Router V6. Each user has several projects, according with React Router documentation, I declared routes in this way:
...ANSWER
Answered 2022-Apr-04 at 10:58there an issue that there is not a closing tag for
QUESTION
I'm using the following jquery plugins : Excel-like-Bootstrap-Table-Sorting-Filtering-Plugin
This is pretty awesome but on some tables, I have a rowspan which is messing the stuff. How can I fix this plugin to get the appropriate date in the filter to be shown taking in account the roswpan.
I made an example in the following JSFiddle. Try to filter the second column and you will see it's showing data from the third column in the quick filter. https://jsfiddle.net/83wLhg62/1/
...ANSWER
Answered 2022-Mar-21 at 08:29Finally I found a way to do it :
add a column with display:none when I have a rowspan !
cf jsfiddle https://jsfiddle.net/zrf2a4qL/
QUESTION
Lets suppose that we have the following 3 tables
...ANSWER
Answered 2022-Mar-14 at 18:02If you'll be filtering on a small number of Animal
records, one approach is to do a CROSS JOIN with the Actions
table. That will give you all action combinations for each Animal
record. Then do an OUTER JOIN to Animal_Actions
to identify which ones are missing.
For example, using cat = 2 and dog = 1
QUESTION
I have an index with documents with the name property. My target document has the following value : "name" : "Eiker Football Team Crows"
. There are quite a few with "Eiker" somewhere in their name as it is a region. Searches for Football Team
finds this document and so does eik football team
or even eike
(though it finds others too). What is really weird is that Eiker
finds NONE of the documents with the word, but does suggest some with permutations like Eker
or Eikeland
. Literally searching for the full correctly spelled and cased name as the document I am looking for, does NOT find it.
This is the search I am trying to do as written in Kibana developer:
...ANSWER
Answered 2022-Mar-10 at 13:02Simple answer of your question is you are using fuzziness
so it will do the fuzzy matching as well. Please check this documentation.
fuzziness allows fuzzy matching based on the type of field being queried.
Also, Elasticsearch return top 10 result only by default. If you want to get more result then set size
param value to large number.
Update:
As per your comment, you are using autocomplete
as index time analyzer and autocomplete_search
as search time analyzer so thats why result are not coming. Try the below query with same analyzer which is use at index time for name
field and it should return result. (Please add your index mapping and analyzer setting in question so it will easy to answer question)
QUESTION
I have a simple problem that I think I need help with. So, I have a function that accepts a string in this format
"1. Crowe, Velvet (LoC), 2. Hume, Eleanor (Ext), 4. Shigure, Rokurou (DmN), 10. Mayvin, Magilou (MgC)"
without the quotation marks.
Basically, a list of person's names with rank number.
What I want is to split them such that I will get the ff result:
...ANSWER
Answered 2022-Mar-09 at 11:38Just a little improvement of @cmgchess
's answer (add trim
method to remove unnecessary spaces):
QUESTION
This code is about structures and includes basic input from the user but somehow that is not working properly with numeric values such as age, salary etc. I have tried fflush() but got no luck from using that and I can't find any other solution on the internet, everything except the garbage value works like a charm in this code
...ANSWER
Answered 2022-Mar-05 at 23:10You are printing the address of id
, age
, and salary
. Delete the &
in front of them in your printf
statements to print their values.
QUESTION
I wrote the following code to convert several images. Until img_back, the image was converted correctly, but when this image is saved, only the white image is saved.
how to solve? thank you.
ANSWER
Answered 2022-Feb-20 at 09:27The data in img_back
at a very high scale. I suggest normalizing the data before writing it to an image:
QUESTION
This is probably going to be simple but I can't figure it out. I have the following in the razor page:
...ANSWER
Answered 2022-Feb-18 at 02:38Try to add id to your form,and submit the form after alert("end of test");
:
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