First of all wrap the src in {} Then if using Webpack; Instead of: <img src={“./logo.jpeg”} /> You may need to use require: <img src={require(‘./logo.jpeg’)} /> Another option would be to first import the image as such: import logo from ‘./logo.jpeg’; // with import or … const logo = require(‘./logo.jpeg); // with require then plug … Read more
In the 5.1 release of react-router there is a hook called useLocation, which returns the current location object. This might useful any time you need to know the current URL. import { useLocation } from ‘react-router-dom’ function HeaderView() { const location = useLocation(); console.log(location.pathname); return <span>Path : {location.pathname}</span> }
Generally event handlers should use e.currentTarget.value, e.g.: onChange = (e: React.FormEvent<HTMLInputElement>) => { const newValue = e.currentTarget.value; } You can read why it so here (Revert “Make SyntheticEvent.target generic, not SyntheticEvent.currentTarget.”). UPD: As mentioned by @roger-gusmao ChangeEvent more suitable for typing form events. onChange = (e: React.ChangeEvent<HTMLInputElement>)=> { const newValue = e.target.value; }
This should work. While sending the prop back you are sending that as an object rather send that as a value or alternatively use it as an object in the parent component. Secondly you need to format your json object to contain name value pairs and use valueField and textField attribute of DropdownList Short Answer … Read more
First of all, you need not do var r = this; as this in if statement refers to the context of the callback itself which since you are using arrow function refers to the React component context. According to the docs: history objects typically have the following properties and methods: length – (number) The number … Read more
Try something like this utilizing oneOfType or PropTypes.node import PropTypes from ‘prop-types’ … static propTypes = { children: PropTypes.oneOfType([ PropTypes.arrayOf(PropTypes.node), PropTypes.node ]).isRequired } or static propTypes = { children: PropTypes.node.isRequired, }
If you are targeting browser environments, you need to use react-router-dom package, instead of react-router. They are following the same approach as React did, in order to separate the core, (react) and the platform specific code, (react-dom, react-native ) with the subtle difference that you don’t need to install two separate packages, so the environment … Read more
The for attribute is called htmlFor for consistency with the DOM property API. If you’re using the development build of React, you should have seen a warning in your console about this.
You can post axios data by using FormData() like: var bodyFormData = new FormData(); And then add the fields to the form you want to send: bodyFormData.append(‘userName’, ‘Fred’); If you are uploading images, you may want to use .append bodyFormData.append(‘image’, imageFile); And then you can use axios post method (You can amend it accordingly) axios({ … Read more
From React’s documentation: setState() does not immediately mutate this.state but creates a pending state transition. Accessing this.state after calling this method can potentially return the existing value. There is no guarantee of synchronous operation of calls to setState and calls may be batched for performance gains. If you want a function to be executed after … Read more