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October 28, 2022 14:26
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| /** | |
| * Handling Forms and different events | |
| * Conditional rendering | |
| * Looping in react | |
| */ | |
| // import "./style.css"; | |
| import { useState, createRef } from "react"; | |
| const RenderResult = (props) => { | |
| const { showResult, firstName, removeHandler } = props; | |
| const arrayOfCharacters = firstName.split(""); | |
| if (showResult) { | |
| return ( | |
| <div className="result"> | |
| Name - {firstName.toUpperCase()} | |
| <br /> | |
| Length - {firstName.length} | |
| <br /> | |
| <button | |
| onClick={() => { | |
| removeHandler(); | |
| }} | |
| > | |
| Remove Section | |
| </button> | |
| <div> | |
| <ul> | |
| {arrayOfCharacters.map((character, index) => ( | |
| <li key={index}>{character}</li> | |
| ))} | |
| </ul> | |
| </div> | |
| </div> | |
| ); | |
| } | |
| return <div></div>; | |
| }; | |
| const FormComponent = () => { | |
| const [firstName, setFirstName] = useState(""); | |
| const [showResult, setShowResult] = useState(false); | |
| const inputRef = createRef(); | |
| const redDiv = createRef(); | |
| return ( | |
| <div className="form-container"> | |
| <h2>Form Component</h2> | |
| <form | |
| onSubmit={(event) => { | |
| console.log("hello submit"); | |
| event.stopPropagation(); | |
| event.preventDefault(); | |
| setShowResult(true); | |
| }} | |
| > | |
| <label htmlFor="first-name"> | |
| Name: | |
| <input | |
| value={firstName} | |
| onChange={(event) => { | |
| setFirstName(event.target.value.toUpperCase()); | |
| }} | |
| name="first-name" | |
| type="text" | |
| /> | |
| </label> | |
| <input type="text" ref={inputRef} /> | |
| <span | |
| onClick={() => { | |
| console.log(" Value --> ", inputRef.current.value); | |
| }} | |
| > | |
| Get Value | |
| </span> | |
| <div | |
| id="red-div" | |
| ref={redDiv} | |
| style={{ | |
| backgroundColor: "red", | |
| height: "100px", | |
| width: "100px", | |
| margin: "50px", | |
| }} | |
| ></div> | |
| <span | |
| onClick={() => { | |
| redDiv.current.style.background = "green"; | |
| }} | |
| > | |
| {" "} | |
| Change Color{" "} | |
| </span> | |
| <button type="submit">Submit</button> | |
| <RenderResult | |
| firstName={firstName} | |
| showResult={showResult} | |
| removeHandler={() => { | |
| setShowResult(false); | |
| }} | |
| /> | |
| </form> | |
| </div> | |
| ); | |
| }; | |
| export default FormComponent; |
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