Last time, we have successfully displayed a Markdown article on the website and automatically generated a catalogue. Now, we wanted to generate a more practical fixed sidebar navigation. Solution 1: We can use ‘markdown-navbar’. However, this plugin has requirements for the format of markdown files, if the format is not Read more…
export const NumberContext = React.createContext(); function App() { const [foo, changeFoo] = useState('foo') return ( <NumberContext.Provider value={{ foo, changeFoo }}> <TheButton /> <Display /> </NumberContext.Provider> ); } function TheButton() { const { changeFoo } = useContext(NumberContext) return ( <button onClick={() => changeFoo('bar')}>Click me</button> ); } function Display() { const context Read more…
1. What is Promise Promise is a solution for asynchronous programming. It is actually a constructor with its own methods all, reject and resolve, and prototype methods such as then and catch. The Promise object has the following two features: The Promise object represents an asynchronous operation with three states: Read more…