udemy-react-course/errors/src/App.js

49 lines
1.2 KiB
JavaScript

import React, { useState } from "react";
import CourseGoalList from "./components/CourseGoals/CourseGoalList/CourseGoalList";
import CourseInput from "./components/CourseGoals/CourseInput/CourseInput";
import "./App.css";
const App = () => {
const [courseGoals, setCourseGoals] = useState([
{ text: "Do all exercises!", id: "g1" },
{ text: "Finish the course!", id: "g2" },
]);
const addGoalHandler = (enteredText) => {
setCourseGoals((prevGoals) => {
const updatedGoals = [...prevGoals];
updatedGoals.unshift({ text: enteredText, id: "goal1" });
return updatedGoals;
});
};
const deleteItemHandler = (goalId) => {
setCourseGoals((prevGoals) => {
const updatedGoals = prevGoals.filter((goal) => goal.id !== goalId);
return updatedGoals;
});
};
let content = (
<p style={{ textAlign: "center" }}>No goals found. Maybe add one?</p>
);
if (courseGoals.length > 0) {
content = (
<CourseGoalList items={courseGoals} onDeleteItem={deleteItemHandler} />
);
}
return (
<>
<section id="goal-form">
<CourseInput onAddGoal={addGoalHandler} />
</section>
<section id="goals">{content}</section>
</>
);
};
export default App;