explain promise in javscript to a layman ChatGPT Sure, imagine you ordered a pizza from a restaurant, but you have to wait for it to be made and delivered. The waiter gives you a little buzzer and tells you, "When your pizza is ready, this buzzer wil...
class Counter extends React.Component { constructor(props) { super(props); this.state = { count: 0 }; // Change code below this line this.increment=this.increment.bind(this); this.decrement=this.decrement.bind(this); this.rese...
In addition to setting and updating state, you can also define methods for your component class. A class method typically needs to use the this keyword so it can access properties on the class (such as state and props) inside the scope of the method....
Suppose you are learning english and you donot know the meaning of the word.What you do? You first search the meaning in the dictionary and then see the sentences with that word to understand the meaning better.In the same way to understand the progr...
this.setState({ username: 'Lewis' });
There is another way to access state in a component. In the render() method, before the return statement, you can write JavaScript directly. For example, you could declare functions, access data from state or props, perform computations on this data,...
Once you define a component's initial state, you can display any part of it in the UI that is rendered. If a component is stateful, it will always have access to the data in state in its render() method. You can access the data with this.state. If yo...
Create a Stateful Component One of the most important topics in React is state. State consists of any data your application needs to know about, that can change over time. You want your apps to respond to state changes and present an updated UI when ...
A stateless functional component is any function you write which accepts props and returns JSX. A stateless component, on the other hand, is a class that extends React.Component, but does not use internal state (covered in the next challenge). Finall...