onKeyDown event not working on divs in React
You should use tabIndex attribute to be able to listen onKeyDown event on a div in React. Setting tabIndex=”0″ should fire your handler.
reactjs
How to use Google fonts in React.js?
In some sort of main or first loading CSS file, just do: @import url(‘https://fonts.googleapis.com/css?family=Source+Sans+Pro:regular,bold,italic&subset=latin,latin-ext’); You don’t need to wrap in any sort of @font-face, etc. the response you get back from Google’s API is ready to go and lets you use font families like normal. Then in your main React app JavaScript, at the top … Read more
react.js application showing 404 not found in nginx server
When your react.js app loads, the routes are handled on the frontend by the react-router. Say for example you are at http://a.com. Then on the page you navigate to http://a.com/b. This route change is handled in the browser itself. Now when you refresh or open the url http://a.com/b in the a new tab, the request … Read more
Visual studio code changes format (React-JSX)
In the end what did the trick was changing the file format from JavaScript to JavaScript React on the bottom toolbar. I’m publishing it here for future reference since I didn’t find any documentation on this topic. In addition to the above. If you click ‘Configure File Association for .js’ you can set all .js … Read more
Using React-Router with a layout page or multiple components per page
If I understood you correctly, to achieve that you would define multiple components in your Route. You can use it like: // think of it outside the context of the router, if you had pluggable // portions of your `render`, you might do it like this <App children={{main: <Users/>, sidebar: <UsersSidebar/>}}/> // So with the … Read more
How to unmount, unrender or remove a component, from itself in a React/Redux/Typescript notification message
Just like that nice warning you got, you are trying to do something that is an Anti-Pattern in React. This is a no-no. React is intended to have an unmount happen from a parent to child relationship. Now if you want a child to unmount itself, you can simulate this with a state change in … Read more
react-router vs react-router-dom, when to use one or the other?
react-router contains all the common components between react-router-dom and react-router-native. When should you use one over the other? If you’re on the web then react-router-dom should have everything you need as it also exports the common components you’ll need. If you’re using React Native, react-router-native should have everything you need for the same reason. So … Read more
How to use comments in React
Within the render method comments are allowed, but in order to use them within JSX, you have to wrap them in braces and use multi-line style comments. <div className=”dropdown”> {/* whenClicked is a property not an event, per se. */} <Button whenClicked={this.handleClick} className=”btn-default” title={this.props.title} subTitleClassName=”caret”></Button> <UnorderedList /> </div> You can read more about how comments … Read more
When to use useImperativeHandle, useLayoutEffect, and useDebugValue
Allow me to preface this answer by stating that all of these hooks are very rarely used. 99% of the time, you won’t need these. They are only meant to cover some rare corner-case scenarios. useImperativeHandle Usually when you use useRef you are given the instance value of the component the ref is attached to. … Read more
Cannot use JSX unless the ‘–jsx’ flag is provided
Every time I run npm start, it overrides whatever I configure in {jsx: …} with react-jsx in order to be compatible with JSX transform in React 17. The following changes are being made to your tsconfig.json file: – compilerOptions.jsx must be react-jsx (to support the new JSX transform in React 17) The problem is VSCode … Read more