you’re miss-reading this error. props is not undefined, what is calling props is undefined, which is the this keyword. you can manually set the context of the map function by passing in a second parameter this.props.buildings.map(this.renderBuildings, this) or bind it inline this.props.buildings.map(this.renderBuildings.bind(this))
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
By the time script is executed, document element is not available yet, because script itself is in the head. While it’s a valid solution to keep script in head and render on DOMContentLoaded event, it’s even better to put your script at the very bottom of the body and render root component to a div … Read more
React Router v6, using hooks In react-router-dom v6 there’s a new hook named useSearchParams. So with you will get “blablabla”. Note, that searchParams is an instance of URLSearchParams, which also implements an iterator, e.g. for using Object.fromEntries etc. React Router v4/v5, without hooks, generic React Router v4 does not parse the query for you any more, but … Read more
Full code here: https://gist.github.com/js08/0ec3d70dfda76d7e9fb4 Hi, I have an application where it shows different templates for desktop and mobile on basis of build environment. I am successfully able to develop it where I need to hide the navigation menu for my mobile template. right now I am able to write one test case where it fetches … Read more
Possible repeated question from How to overcome the CORS issue in ReactJS CORS works by adding new HTTP headers that allow servers to describe the set of origins that are permitted to read that information using a web browser. This must be configured in the server to allow cross domain. You can temporary solve this … Read more
When I run a react-native project, I get a error no bundle URL present , but I don’t know what mistakes I do, I was very confused.
You need to import ReactDOM in Main.js instead of App.jsx, as Main is where you are using ReactDOM to render. Also need to import React in all files that use JSX. Finally, also put react-router imports into Main, too. The way imports work is, you import things you need, in places they’re needed. It’s not … Read more
that because you calling toggle inside the render method which will cause to re-render and toggle will call again and re-rendering again and so on this line at your code you need to make onClick refer to this.toggle not calling it to fix the issue do this
I’ll answer my own questions and sponfeed my fellow linux users: 1- To point JAVA_HOME to the JRE included with Android Studio first locate the Android Studio installation folder, then find the /jre directory. That directory’s full path is what you need to set JAVA_PATH to (thanks to @TentenPonce for his answer). On linux, you can set JAVA_HOME … Read more