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Tag: reactjs

Render a list of names alphabetically and grouped by their first char

I need to render a list of names alphabetically and grouped by the starting letter of each name. It should look like this: My current solution can sort all the names that is contained within an object, but I am having trouble adding the starting letter as an element before the names (e.g. rendering ‘A’ above ‘Anders’ and ‘B’ above

how can I show customized error messaged from server side validation in React Admin package?

Is there any way to perform server side form validation using https://github.com/marmelab/react-admin package? Here’s the code for AdminCreate Component. It sends create request to api. Api returns validation error with status code 422 or status code 200 if everything is ok. So the question is, how can I show errors for each field separately from error object sent from server?

‘command not found: jest’

I have a test file like so: (I am using create-react-app) and a package.json: when I run jest –updateSnapshot I get: but jest is installed. Answer Jest is installed, but is likely in your ./node_modules/.bin directory. You can append that to your command ./node_modules/.bin/jest –updateSnapshot. Since you already have jest as a scripts command in your package.json you can also

Material-ui drawer width issue

I’m facing an issue with material-ui drawer. I’ve changed the width of the drawer container which causes a a problem . The drawer remains a little inside the page and visible but I don’t want to make it visible on the page while I haven’t clicked the button. It might be having an issue with the transform attribute now. So

Fetch request to local file not working

I’m trying to make a request in a local file, but I don’t know when I try to do on my computer show me an error. Is possible make a fetch to a file inside your project? Answer I was encountering the same error and there are two changes I made in my code to get rid of the error.

Dropdown with multiple selection limit

I relatively new to React and Semantic UI as well. There is a component called Dropdown with a props multiple and selection, which allows to select multiple items. On the output my state looks like this: How can I do setup limit of N amount of elements? Many thanks Answer Well according to https://react.semantic-ui.com/modules/dropdown#dropdown-example-multiple-selection you need to create controlled component,

ReactJS styles ‘leaking’ to other components

So I have two components… a Navbar component, and an AboutPage component. They are both in the same directory, ‘App’ App — Navbar –> Navbar.css, Navbar.js — AboutPage –> Aboutpage.css, Aboutpage.js So as you can see, they have two separate stylesheets. In the JS pages the correct CSS file is being imported as well. When I do a style like

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